Third Division
- 3rd Division (disambiguation)
- AIB Division Three
- Belgian Third Division
- Cypriot Third Division
- DIII (disambiguation)
- Danish 3rd Division
- Egyptian Second Division B
- FFHG Division 3
- Football League Third Division
- French Division 3 (disambiguation)
- Hong Kong Third Division League
- IIHF World Championship Division III
- Interdistrict Division Three
- Iran Football's 3rd Division
- Kildare Senior Football League Division 3
- Kolmonen – Finnish League Division 3
- Lebanese Third Division
- Leinster League Division Three
- Libyan Third Division
- Liga Indonesia Third Division
- Maltese Third Division
- NCAA Division III
- National Conference League Division 3
- North Division Three (shinty)
- Norwegian Third Division
- Portuguese Handball Third Division
- Rugby Football League Championship Third Division
- Russian Amateur Football League
- Scottish Football League Third Division
- Scottish National League Division Three
- Sligo Intermediate Football League Division 3 (ex Div. 2)
- Speedway National League Division Three
- Swedish Football Division 3
- Swedish Women's Football Division 3
- Terceira Divisão
- Victorian State League Division 3
- WRU Division Three East
- WRU Division Three North
- WRU Division Three South East
- WRU Division Three South West
- WRU Division Three West
- Welsh Football League Division Three
- York Football League Division Three