- St John the Baptist Catholic School Choir
- St. Johnny
- St. Johns Alliance
- St. John's Baloonagh Primary School
- St. John's Cathedral Choir and Orchestra
- St. John's Children Choir
- St. John's Children's Choir
- St. John's Choir
- St. John's College Choir
- St. John's College Choir, Cambridge
- St. John's Episcopal Cathedral Choir
- St John's Jazzband
- St. John's Jazzband
- St. John's Junior School For Girls
- St. John's Kids
- St. John's Russian Orthodox Choir
- St. Joseph
- St. Joseph Cathedral Priest
- St. Joseph's Ass
- St. Joseph's High School Glee Club
- St. Joseph's Junior School
- St. Joseph's School Choir
- St Joseph's School Choir/Sarah
- St. Joslin Grove Choral Society
- St. Jude
- St. Juste
- St. Kelly
- St. Kilian Boy Choir
- St. Killian Boys Choir
- St. Laurent
- St. Lawrence
- St. Lawrence, Jewry
- St. Lawrence String Quartet
- St. Lawrence University Sinners
- St. Laz
- St. Laz