- Jacinto VillalbaPosition: forwardBorn: 8 February 1924
- Jacob RigoniNationality: Italy, AustraliaBorn: 10 December 1998
- Jacob SamoggiaNationality: ItalyBorn: 2 June 1994
- Jacopo BalanzoniPosition: power forwardNationality: Italy
- Jacopo BorraPosition: centerNationality: Italy
- Jacopo LepriNationality: ItalyBorn: 21 December 1995
- Jacopo LucarelliPosition: small forwardNationality: Italy
- Jacopo ManzardoNationality: ItalyBorn: 7 April 2004
- Jacopo MercanteNationality: ItalyBorn: 30 July 1990
- Jacopo PozziNationality: ItalyBorn: 5 April 1987
- Jacopo RapettiNationality: ItalyBorn: 8 November 2004
- Jacopo SolianiNationality: ItalyBorn: 28 September 2003
- Jacopo ValentiniPosition: shooting guardNationality: Italy
- Jacopo Van Der KnaapNationality: Kingdom of the Netherlands, ItalyBorn: 11 March 2003
- Jaime DragoPosition: midfielderBorn: 14 January 1959
- Jaime DuartePosition: defenderBorn: 27 February 1955
- Jaime HuertaPosition: defenderBorn: 8 August 1987
- Jaime La TorrePosition: forwardBorn: 11 August 1986
- Jaime LinaresPosition: midfielderBorn: 7 May 1983
- Jaime MuroPosition: goalkeeperBorn: 10 October 1977
- Jaime RuizPosition: attackerBorn: 23 May 1935
- Jaime VásquezPosition: forwardBorn: 21 February 1991
- Jair BaylónPosition: forwardBorn: 26 February 1989
- Jair CéspedesPosition: wing halfBorn: 22 May 1984
- Jair CórdovaPosition: forwardBorn: 18 August 1996
- Jair ToledoPosition: defenderBorn: 22 June 1996
- Jair YglesiasPosition: full-backBorn: 10 February 1981
- Jairo HernándezPosition: midfielderBorn: 2 March 1990
- Jairo TalledoPosition: full-backBorn: 19 March 1987
- Jairo VélezPosition: forwardBorn: 21 April 1995
- Jami MontagninoPosition: shooting guardNationality: United States, Italy
- Jana NeradováPosition: centerNationality: Italy, Czechoslovakia, Czech Republic
- Jankarlo ChirinosPosition: forwardBorn: 30 March 1988
- Jansey Noel DaraniNationality: Italy, SwitzerlandBorn: 26 November 2002
- Jasmin RedditiNationality: Italy, MoroccoBorn: 19 December 2006
- Jasmine KeysNationality: ItalyBorn: 8 October 1997
- Jason Lee SturaNationality: Italy, United StatesBorn: 26 March 1971
- Jason MaileNationality: Italy, United StatesBorn: 24 January 1974
- Jason NistrioNationality: ItalyBorn: 7 June 2007
- Javier BulfoniPosition: shooting guardNationality: Argentina, Italy
- Javier CabreraPosition: defensive midfielderBorn: 19 July 1965
- Javier CarneroPosition: forwardBorn: 13 July 1988
- Javier Chirinos LloverasPosition: defenderBorn: 19 September 1987
- Javier ChumpitazPosition: defenderBorn: 4 January 1984
- Javier CáceresPosition: attackerBorn: 8 September 1939
- Javier GonzálezPosition: midfielderBorn: 11 May 1939
- Javier NaveaPosition: midfielderBorn: 11 May 2003
- Javier Núñez MendozaPosition: midfielderBorn: 23 January 1997
- Javier SalazarPosition: centre-back, defenderBorn: 11 March 1983
- Javier SoriaPosition: midfielderBorn: 15 December 1974
- Jean Carlo HuamantaPosition: goalkeeperBorn: 23 August 2005
- Jean DezaPosition: wing halfBorn: 9 June 1993
- Jean FerrariPosition: midfielderBorn: 29 July 1975
- Jean Paul MaravíPosition: midfielderBorn: 27 April 1994
- Jean Pierre ArchimbaudPosition: midfielderBorn: 16 August 1994
- Jean Pierre CáncarPosition: full-backBorn: 8 July 1987
- Jean Pierre FuentesPosition: midfielderBorn: 18 October 1991
- Jean TragodaraPosition: midfielderBorn: 16 December 1985
- Jean-Pierre RhynerPosition: defenderBorn: 15 March 1996
- Jefferson FarfánPosition: forwardBorn: 26 October 1984
- Jefferson PortalesPosition: defenderBorn: 29 November 1997
- Jeffrey ColladonNationality: ItalyBorn: 26 July 1972
- Jeffrey ViggianoPosition: small forwardNationality: United States, Italy
- Jeickson ReyesPosition: full-backBorn: 9 October 1987
- Jeisson MartínezPosition: forwardBorn: 27 May 1992
- Jenna RubinoNationality: Italy, United StatesBorn: 21 February 1985
- Jeremiah SolaNationality: Italy, United StatesBorn: 12 September 1981
- Jeremy AguirrePosition: forwardBorn: 20 February 1999
- Jeriel De SantisPosition: forwardBorn: 2002
- Jerry TamashiroPosition: forwardBorn: 18 March 1971
- Jersi SócolaPosition: defenderBorn: 7 July 1990
- Jesús Alex Reyes GuadalupePosition: forwardBorn: March 1982
- Jesús ArismendiPosition: defenderBorn: 25 March 1987
- Jesús BarcoPosition: midfielderBorn: 9 March 1997
- Jesús CastilloPosition: midfielderBorn: 11 June 2001
- Jesús CisnerosPosition: goalkeeperBorn: 18 March 1978
- Jesús GoyzuetaPosition: goalkeeperBorn: 9 February 1947
- Jesús PeláezBorn: 20 June 1940Sport: association football
- Jesús PeñaPosition: midfielderBorn: 18 October 1990
- Jesús PretellPosition: midfielderBorn: 26 March 1999
- Jesús PurizagaPosition: goalkeeperBorn: 24 December 1959
- Jesús RabanalPosition: full-backBorn: 25 December 1984
- Jesús ReyPosition: forwardBorn: 9 February 1988
- Jesús Villalobos VillegasPosition: forwardBorn: July 1927
- Jesús ÁlvarezPosition: centre-back, defenderBorn: 26 August 1981
- Jhair SotoPosition: defenderBorn: 3 June 2003
- Jhamir D'ArrigoPosition: forwardBorn: 15 November 1999
- Jhilmar LoraPosition: full-backBorn: 24 October 2000
- Jhoao VelásquezPosition: defenderBorn: 2 August 2005
- Jhoao WardPosition: forwardBorn: 4 May 1989
- Jhoel HerreraPosition: defenderBorn: 9 July 1980
- Jhon Rebatta LamBorn: 23 April 1999Sport: association football
- Jhonnier Montaño Jr.Position: midfielderBorn: 30 December 2004
- Jhonny BravoPosition: midfielderBorn: 5 December 1985
- Jhonny OlórteguiPosition: forwardBorn: 30 July 1985
- Jhonny VidalesPosition: wing halfBorn: 21 April 1992
- Jhony ObesoPosition: midfielderBorn: 2 June 1991
- Jhordan CamposPosition: defenderBorn: 15 September 1995
- Jhosely GamarraPosition: midfielderBorn: 24 June 2002
- Jhoys NogueiraPosition: midfielderBorn: 3 June 1981
- Jimmy FloresPosition: defenderBorn: 10 October 1984
- Jimmy ValoyesPosition: defenderBorn: 30 November 1986
- Jmeil SderNationality: SyriaBorn: 5 November 1991
- Joao Pereira FloresPosition: defenderBorn: 10 November 1983
- Joao VillamarínPosition: forwardBorn: 2 March 1992
- Joaquín Aguirre LuzaPosition: midfielderBorn: 24 July 1995
- Joaquín ValinottiNationality: Italy, ArgentinaBorn: 1 December 1998
- Joel PintoPosition: goalkeeperBorn: 5 June 1980
- Joel QuispeBorn: 7 April 1982Sport: association football
- Joel SánchezPosition: midfielderBorn: 11 June 1989
- Joel ZacchettiPosition: power forwardNationality: Italy
- Johan FanoPosition: forwardBorn: 9 August 1978
- Johan MadridPosition: defenderBorn: 26 November 1996
- Johan ReyPosition: forwardBorn: 28 February 1992
- Johan SotilPosition: wing halfBorn: 29 August 1982
- John CortezPosition: defenderBorn: 9 March 2004
- John EbelingPosition: centerNationality: Italy, United States
- John FajardoPosition: defenderBorn: 24 February 1989
- John GalliquioPosition: centre-backBorn: 12 January 1979
- John HinostrozaPosition: midfielderBorn: 22 February 1980
- Johnny LalopúPosition: defenderBorn: 25 May 1982
- Johnny Vegas FernándezPosition: goalkeeperBorn: 9 February 1976
- Johnny WatsonPosition: forwardBorn: 12 March 1962
- Jon GaravagliaPosition: centerNationality: United States, Italy
- Jonathan AcasietePosition: defenderBorn: 10 November 1988
- Jordan GuivinPosition: midfielderBorn: 1998
- Jorge AlcaldePosition: forwardBorn: 26 November 1916
- Jorge AlegríaPosition: forwardBorn: 8 April 1980
- Jorge ArteagaPosition: defenderBorn: 29 December 1966
- Jorge BazánPosition: wing halfBorn: 23 March 1991
- Jorge BosmedianoPosition: defenderBorn: 16 February 1991
- Jorge CabezudoBorn: 21 October 2001Sport: association football
- Jorge CorderoPosition: midfielderBorn: 6 January 1962
- Jorge EsparzaPosition: midfielderBorn: 22 June 1993
- Jorge EspejoPosition: midfielderBorn: 20 August 1976
- Jorge GóngoraPosition: forwardBorn: 12 October 1906
- Jorge HiranoPosition: forwardBorn: 16 August 1956
- Jorge HuamánPosition: defenderBorn: 11 April 1977
- Jorge Leiva UrbanoPosition: forwardBorn: 29 January 1981
- Jorge Lizarbe ValientePosition: midfielderBorn: 1914
- Jorge LozadaPosition: forwardBorn: 30 March 1987
- Jorge MalpartidaPosition: forwardBorn: 21 July 1991
- Jorge MolinaPosition: midfielderBorn: 5 March 1987
- Jorge MurrugarraBorn: 22 March 1997Sport: association football
- Jorge Navarrete FuentesPosition: midfielderBorn: 21 July 1990
- Jorge Nelson RamírezPosition: defenderBorn: 22 December 1955
- Jorge OlaecheaPosition: defenderBorn: 27 August 1956
- Jorge PardonPosition: goalkeeperBorn: 4 March 1905
- Jorge ParróBorn: 2000Sport: association football
- Jorge Ramírez TabacchiPosition: forwardBorn: 7 September 1975
- Jorge Reyes CondoriPosition: defenderBorn: 18 May 1981
- Jorge RifattiPosition: centerNationality: Argentina, Italy
- Jorge RíosPosition: midfielderBorn: 7 December 1999
- Jorge SarmientoPosition: forwardBorn: 2 November 1900
- Jorge SotoPosition: midfielderBorn: 27 October 1971
- Jorge TalaveraPosition: midfielderBorn: 31 December 1963
- Jorge VásquezPosition: forwardBorn: 29 July 1937
- Jorge Ágapo GonzalesBorn: 25 March 1967Sport: association football
- Josef ChávezPosition: defenderBorn: 12 August 1990
- Joselito CarreraPosition: goalkeeperBorn: 21 July 1980
- Joseph JuárezPosition: midfielderBorn: 1994
- Joseph MuñozPosition: defenderBorn: 6 January 1990
- Joseph Riccardo IannelliNationality: ItalyBorn: 5 May 2005
- Josephine Di FineNationality: ItalyBorn: 9 August 2004
- Josepmir BallónPosition: midfielderBorn: 21 March 1988
- Joshua BedoyaPosition: goalkeeperBorn: 27 September 2003
- Joshua PettenòPosition: small forwardNationality: Italy
- Josimar AtochePosition: midfielderBorn: 29 September 1989
- Josimar VargasPosition: midfielderBorn: 6 April 1990
- Josuee HerreraPosition: wing halfBorn: 4 February 1999
- José AguayoPosition: defenderBorn: 25 October 1955
- José AlegríaPosition: midfielderBorn: 5 October 1980
- José Andrés CarranzaPosition: forwardSport: association football
- José Arana CruzPosition: midfielderBorn: 6 September 1902
- José ArnillasPosition: forwardBorn: 22 October 1992
- José BustamantePosition: forwardBorn: 15 January 2000
- José CanovaPosition: centre-backBorn: 30 September 1992
- José Carlos FernándezPosition: forwardBorn: 14 May 1983
- José CarvalloPosition: goalkeeperBorn: March 1986
- José CasanovaPosition: midfielderBorn: 12 May 1964
- José CorcueraPosition: midfielderBorn: 6 August 1981
- José CotrinaPosition: midfielderBorn: 8 August 1997
- José Cáceres ZevallosPosition: midfielderBorn: 25 January 1995
- José del CastilloPosition: midfielderBorn: 10 May 1943
- José del SolarPosition: midfielderBorn: 28 November 1967
- José FernándezPosition: defenderBorn: 14 February 1939
- José Gallardo FloresPosition: forwardBorn: 15 February 2001
- José González GanozaPosition: goalkeeperBorn: 10 July 1954
- José GrandaPosition: defenderBorn: 13 April 1992
- José GuidinoPosition: defenderBorn: 4 September 1996
- José HonoresPosition: defenderBorn: 2 February 1989
- José IngaPosition: midfielderBorn: 7 October 1999
- José Julio Espinoza ValerianiPosition: midfielderBorn: 23 June 1974
- José Luis CarranzaPosition: midfielderBorn: 8 January 1964
- José Luis ChacónPosition: defenderBorn: 6 November 1971
- José Luis ReynaPosition: defenderBorn: 14 January 1972
- José Luis VásquezPosition: forwardBorn: 9 January 1957
- José LujánPosition: defenderBorn: 12 January 1997
- José ManzanedaPosition: midfielderBorn: 10 September 1994
- José María Córdova AliagaPosition: forwardBorn: 2 July 1986
- José María LavallePosition: forwardBorn: 21 April 1902
- José María ParedesPosition: defenderBorn: April 1996
- José Mendoza ZambranoPosition: midfielder, full-backBorn: 24 June 1982
- José MesarinaPosition: full-backBorn: 15 November 1988
- José MoiselaPosition: full-backBorn: 25 June 1980
- José MoralesPosition: forwardBorn: 15 March 1910
- José NavarroPosition: defenderBorn: 24 September 1948
- José PeredaPosition: midfielderBorn: 8 September 1973
- José Rivas ZeballosPosition: midfielderBorn: 19 August 1989
- José RiveraPosition: forward, wing halfBorn: 8 May 1997
- José ShoroPosition: forwardBorn: 10 July 1989
- José SigüeñasPosition: defenderBorn: 30 August 1990
- José Sosa CanessaPosition: forwardBorn: 4 May 1986
- José YancesPosition: midfielderBorn: 3 October 1984
- José Zamora GonzalesPosition: centre-backBorn: 24 January 1987
- José ZapataPosition: forwardBorn: 20 July 1957
- José ZavalaPosition: defenderBorn: 14 December 1988
- José ZevallosPosition: defenderBorn: 13 January 1999
- Joyce CondePosition: forwardBorn: 8 September 1991
- Joélcio JoerkePosition: centerNationality: Italy, Brazil
- Juan Alfonso VallePosition: midfielderBorn: 1905
- Juan ArcePosition: midfielderBorn: 9 January 1990
- Juan BiselachPosition: midfielderBorn: 7 August 1940
- Juan Caballero LoraPosition: forward, attackerBorn: 27 June 1956
- Juan CangelosiNationality: Italy, ArgentinaBorn: 29 April 1981
- Juan Carlos BazalarPosition: midfielderBorn: 23 February 1968
- Juan Carlos CabanillasPosition: midfielderBorn: 2 May 1963
- Juan Carlos La RosaPosition: midfielderBorn: 3 February 1980
- Juan Carlos MariñoPosition: midfielderBorn: 2 January 1982
- Juan Carlos ZubczukPosition: goalkeeperBorn: 31 March 1965
- Juan CastellanosPosition: forwardBorn: 15 June 1990
- Juan Castillo GrandjeanPosition: midfielderBorn: 22 August 1924
- Juan ComingesPosition: midfielderBorn: October 1983
- Juan CriadoPosition: goalkeeperBorn: 24 June 1913
- Juan CáceresPosition: goalkeeperBorn: 27 December 1949
- Juan David DelgadoBorn: 8 May 2005Sport: association football
- Juan de la VegaPosition: midfielderBorn: 10 March 1934
- Juan Diego González-VigilPosition: forwardBorn: 18 February 1985
- Juan Diego GutiérrezPosition: midfielderBorn: 28 April 1992
- Juan Diego LiPosition: defenderBorn: 16 February 1995
- Juan Emilio SalinasPosition: forwardBorn: 12 July 1925
- Juan EspilPosition: shooting guardNationality: Argentina, Italy
- Juan Eugenio Rostaing La TorrePosition: defenderBorn: 16 May 1903
- Juan FernándezPosition: shooting guard, point guardNationality: Italy, Argentina
- Juan FloresPosition: goalkeeperBorn: 25 February 1976
- Juan FloresPosition: forwardSport: association football
- Juan Francisco HernándezPosition: centre-backBorn: 24 June 1978
- Juan GoyonechePosition: goalkeeperBorn: 14 October 1985
- Juan HonoresPosition: goalkeeperBorn: 4 March 1915
- Juan HuangalPosition: midfielderBorn: 29 January 1997
- Juan IllescasBorn: 1959Sport: association football
- Juan IriartePosition: midfielderBorn: 12 September 1979
- Juan José BarrosPosition: forwardBorn: 24 June 1989
- Juan José JayoPosition: midfielderBorn: 20 January 1973
- Juan José MuñantePosition: wing halfBorn: 12 June 1948
- Juan José OréPosition: forwardBorn: 12 June 1954
- Juan JoyaPosition: wing halfBorn: 25 February 1934
- Juan LojasPosition: defenderBorn: 23 April 1989
- Juan LunaPosition: forwardBorn: 8 May 1977
- Juan Manuel CáceresNationality: Italy, ArgentinaBorn: 12 March 1984
- Juan Manuel FabiPosition: point guardNationality: Argentina, Italy
- Juan Manuel Olivares DordanPosition: defenderBorn: 10 January 1974
- Juan Manuel Saavedra NavarroPosition: defenderBorn: November 1977
- Juan MontenegroPosition: midfielderBorn: 22 September 1975
- Juan MoralesPosition: midfielderBorn: 6 March 1989
- Juan MostoPosition: defenderBorn: 23 January 1936
- Juan NakayaPosition: midfielderBorn: 31 December 1983
- Juan Pablo FarfánPosition: defenderBorn: 2 February 1985
- Juan Pablo VergaraPosition: midfielderBorn: 24 February 1985
- Juan PajueloPosition: defenderBorn: 23 September 1974
- Juan PretelPosition: goalkeeperBorn: 5 November 1983
- Juan QuispePosition: defenderBorn: 3 October 1914
- Juan QuiñónezPosition: forwardBorn: 14 June 1987
- Juan Raúl NeiraPosition: midfielderBorn: 7 May 1995
- Juan ReynosoPosition: midfielderBorn: 28 December 1969
- Juan Rivero VillarBorn: 24 June 1909Sport: association football
- Juan SeminarioPosition: forwardBorn: 22 July 1936
- Juan ValdiviesoPosition: goalkeeperBorn: 6 May 1910
- Juan VelásquezPosition: midfielderBorn: 20 March 1971
- Juan VenturaPosition: midfielderBorn: 26 February 1992
- Juan YangaliPosition: defensive midfielderBorn: 3 March 2000
- Juani MarcosPosition: point guardNationality: Argentina, Italy
- Julia SuarezPosition: forwardBorn: November 1996
- Julian SomviNationality: ItalyBorn: 1 May 1989
- Julio AliagaPosition: goalkeeperBorn: 26 July 1989
- Julio AparicioPosition: forwardBorn: 30 January 1955
- Julio AyllónPosition: forwardBorn: 1910
- Julio BaylónPosition: wing halfBorn: 10 December 1947
- Julio César AntónPosition: midfielderBorn: 28 June 1959
- Julio César BalerioPosition: goalkeeperBorn: 19 April 1958
- Julio César de Andrade MouraPosition: forwardBorn: 31 October 1965
- Julio César UribePosition: midfielderBorn: 9 May 1958
- Julio GarcíaPosition: midfielderBorn: 16 June 1981
- Julio IllescasPosition: midfielderBorn: 16 March 1985
- Julio LandauriPosition: midfielderBorn: 17 March 1986
- Julio MeléndezPosition: defenderBorn: 11 April 1942
- Julio QuintanaPosition: midfielderBorn: 13 July 1904
- Julio TalaviñaPosition: forwardBorn: 27 May 1989
- Julius RengifoPosition: forwardBorn: 22 March 1991
- Junior AguirrePosition: forwardBorn: 10 March 1992
- Junior HuertaPosition: defenderBorn: 19 April 1989
- Junior NuñezPosition: midfielderBorn: 28 July 1989
- Junior PoncePosition: midfielder, forwardBorn: 16 February 1994
- Junior RossPosition: wing halfBorn: 19 February 1986
- Junior VizaPosition: midfielderBorn: 3 April 1985
- Juri AltiniNationality: ItalyBorn: 12 November 1968
- Justo BonettoNationality: ItalyBorn: 10 June 1938
- Juvenal BriceñoPosition: forwardBorn: 11 December 1965