The Irish geographical name Ossory can refer to:
- Kingdom of Ossory or Osraige, an ancient kingdom of Ireland
- Earl of Ossory, a subsidiary title held by the Earl of Ormond
- Ossory (UK Parliament constituency), a UK Parliament constituency in Ireland from 1885–1918
- Diocese of Ossory, diocese associated with the ancient kingdom above, historical parent of the dioceses below
- Roman Catholic Diocese of Ossory
- Bishop of Ossory, bishop of the diocese above
- Diocese of Ossory, Ferns and Leighlin, Church of Ireland, established 1835
- Bishop of Ossory, Ferns and Leighlin, bishop of the diocese above
- Diocese of Cashel and Ossory, Church of Ireland, established 1977
- Bishop of Cashel and Ossory, bishop of the diocese above
- Roman Catholic Diocese of Ossory
- Ronald Ossory Dunlop (1894–1973), Irish author and painter
- HMS Ossory, three ships of the Royal Navy
- Ossory (horse), thoroughbred racehorse