- Jimmy OCity: Port-au-PrinceCountry: Haiti
- Jimmy SpicerCity: BrooklynCountry: United States
- Jimmy WopoCity: PittsburghCountry: United States
- JinuCity: CaliforniaCountry: United States
- JireelCountry: SwedenGenres: hip-hop
- Jnr ChoiCity: LondonCountry: United Kingdom
- Jo Woo-chanCity: SeoulCountry: South Korea
- Joe C.City: TaylorCountry: United States
- Joe CassanoCity: BolognaCountry: Italy
- Joe ElCity: Sokoto StateCountry: Nigeria
- Joell OrtizCity: BrooklynCountry: United States
- Joey BCity: Cape CoastCountry: Ghana
- Joey BoyCountry: ThailandStarted in: 1990s
- Joey FattsCountry: United StatesStarted in: 2010s
- JoeyStarrCity: 10ᵗʰ arrondissement of ParisCountry: France
- Jogja Hip Hop FoundationStarted in: 2000sGenres: hip-hop
- John CenaCity: West NewburyCountry: United States
- John FortéCity: BrooklynCountry: United States
- John ReubenCity: ColumbusCountry: United States
- Johnel NnamaniCity: LagosCountry: Nigeria
- Johnny "J"City: Ciudad JuárezCountry: United States
- Johnny PolygonCity: ClevelandCountry: United States
- Johnny SuhCity: ChicagoCountry: United States
- JoJoCity: BrattleboroCountry: United States
- Jok'AirCity: 18th arrondissement of ParisCountry: France
- Jon ConnorCity: FlintCountry: United States
- Jonas BenyoubCountry: NorwayGenres: hip-hop
- Jonna FraserCity: ZaandamCountry: Kingdom of the Netherlands
- Jordan CarterCity: DecaturCountry: United States
- Jordan EvansCity: TorontoCountry: Canada
- Jordin SparksCity: PhoenixCountry: United States
- Joseph BruceCity: MichiganCountry: United States
- Joseph SimmonsCity: QueensCountry: United States
- Josh CullenCity: Las PiñasCountry: Philippines
- Josh EppardCity: KingstonCountry: United States
- JosmanCity: VierzonCountry: France
- Joss StoneCity: DoverCountry: United Kingdom
- JosylvioCity: NaardenCountry: Kingdom of the Netherlands
- José JamesCity: MinneapolisCountry: Lithuania
- Jota BenzCity: LimaCountry: Peru
- Journalist 103City: DetroitCountry: United States
- Joyce N'SanaCountry: CanadaGenres: hip-hop
- Joyner LucasCity: WorcesterCountry: United States
- JssanCity: ChicagoCountry: United States
- JSXCity: AubervilliersCountry: France
- JTCity: MiamiCountry: United States
- JT MoneyCity: MiamiCountry: United States
- JT the Bigga FiggaCountry: United StatesStarted in: 1990s
- JuiceCity: BelgradeCountry: Serbia
- JujuCity: BerlinCountry: Germany
- JulCity: 5th arrondissement of MarseilleCountry: France
- Julie BerganCity: SkienCountry: Norway
- Julio FoolioCity: JacksonvilleCountry: United States
- Juma NatureCity: Dar es SalaamCountry: Tanzania
- JunCity: SeoulCountry: South Korea
- Jung RaeCity: Buenos AiresCountry: Argentina
- JunglepussyCity: East New YorkCountry: United States
- Junior CallyCity: RomeCountry: Italy
- Just-IceCity: New York CityCountry: United States
- Juste ShaniCountry: FranceGenres: hip-hop
- Justina ValentineCity: PassaicCountry: United States
- JuvenileCity: New OrleansCountry: United States
- JXNV$City: Volta RedondaCountry: Brazil
- Jānis KrīvēnsCity: RigaCountry: Latvia
- JędkerCity: WarsawCountry: Poland
- K CampCity: MilwaukeeCountry: United States
- K-osCity: TorontoCountry: Canada
- K.A.S.T.A.Started in: 1990sGenres: hip-hop
- K7City: New York CityCountry: United States
- Kaddour HadadiCity: RoubaixCountry: France
- KaenCity: SanokStarted in: 2000s
- KalashCity: StrasbourgCountry: France
- Kalash CriminelCity: KinshasaCountry: Democratic Republic of the Congo
- KalifaCity: ManhattanCountry: United States
- KaliiiCity: AtlantaCountry: United States
- KamaiyahCity: OaklandCountry: United States
- Kamal GivensCity: Los AngelesCountry: United States
- Kamelanc'City: Le Kremlin-BicêtreCountry: France
- KamelenCity: BergenCountry: Norway
- KaminiCity: Le Nouvion-en-ThiéracheCountry: France
- Kanawut TraipipattanapongCity: King Chulalongkorn Memorial HospitalCountry: Thailand
- Kang DanielCity: BusanCountry: South Korea
- KangnamCity: TokyoCountry: Japan
- Kangol KidCity: BrooklynCountry: United States
- KaniiCity: WashingtonCountry: United States
- Kano FujihiraCity: Chiba PrefectureCountry: Japan
- KantoCity: Gyeonggi ProvinceCountry: South Korea
- KanyeriaCity: NairobiCountry: Kenya
- Kaos OneCity: CasertaCountry: Italy
- Kardinal OffishallCity: ScarboroughCountry: Canada
- Karlie ReddCity: New York CityCountry: United States
- KarrahboooCity: AtlantaCountry: United States
- Karriem RigginsCity: DetroitCountry: United States
- Kash DollCity: DetroitCountry: United States
- Kash PleenGenres: hip-hopBorn: June 11, 2001
- Kat DahliaCity: MiamiCountry: United States
- Kat GrahamCity: GenevaCountry: United States
- KatastrofeCity: Fredrikstad MunicipalityCountry: Norway
- KatastropheCountry: United StatesStarted in: 1990s
- Katie Got BandzCity: ChicagoCountry: United States