Division 1
- 1st Division (disambiguation)
- A Division (disambiguation)
- Azadegan League
- Brisbane Premier League Division 1
- Channel Islands
- Cyprus Basketball Division 1
- Danish 1st Division
- Division (disambiguation)
- Division 1 (Guernsey)
- Division 1 (Swedish football)
- Division 1 (Swedish women's football)
- Division 1 (bandy)
- Division I (NJCAA)
- Division I (US bandy)
- Division II (disambiguation)
- Division Élite
- FFHG Division 1
- First division (baseball)
- Football League First Division
- Football League One
- Guernsey
- Hockeyettan
- Hong Kong First Division League
- I liga
- J1 League
- LFH Division 1
- LNH Division 1
- League of Ireland First Division
- Ligue 1
- NCAA Division I
- One (disambiguation)
- Primera división (disambiguation)
- Saudi First Division League
- Scottish Football League First Division
- Thai Division 1 League
- UAE First Division League
- Victorian State League Division 1
- Welsh Football League Division One
- Women's Flat Track Derby Association Division 1