73rd
- 73 (number)
- 73rd (Perthshire) Regiment of Foot
- 73rd Academy Awards
- 73rd Carnatic Infantry
- 73rd Cavalry Regiment (United States)
- 73rd Delaware General Assembly
- 73rd Field Artillery (United States)
- 73rd Grey Cup
- 73rd Illinois Volunteer Infantry Regiment
- 73rd Infantry Division (Germany)
- 73rd Infantry Regiment (France)
- 73rd New York Volunteer Infantry Regiment
- 73rd Ohio Infantry
- 73rd Oregon Legislative Assembly
- 73rd Regiment Indiana Infantry
- 73rd Regiment of Foot (Invalids)
- 73rd United States Congress
- 73rd meridian east
- 73rd meridian west
- 73rd parallel north
- 73rd parallel south
- AD 73
- California's 73rd State Assembly district