| Crew | City | Country | Started in |
|---|---|---|---|
| J. J. Fad | — | — | 1980s |
| J.U.S.T.I.C.E. League | — | — | 2000s |
| Jabbawockeez | San Diego | — | 2000s |
| Jack & Jack | Monclova | United States | 2010s |
| Jamal | — | — | 1990s |
| Jazzkantine | — | — | 1990s |
| Jimmy Jam and Terry Lewis | Minneapolis | — | 1980s |
| Jinusean | — | — | 1990s |
| Joey Valence & Brae | — | United States | 2020s |
| Juice Crew | New York City | — | 1980s |
| Jungle Brothers | — | United States | 1980s |
| Junior M.A.F.I.A. | Bedford–Stuyvesant | — | 1990s |
| Just D | — | Sweden | 1990s |
| Jätkäjätkät | — | — | 2010s |