Joseph Napier may refer to:
Sir Joseph Napier, 1st Baronet (1804–1882), Irish member of parliament in the United Kingdom Parliament and subsequently Lord Chancellor of Ireland Sir Joseph Napier, 2nd Baronet (1841–1884), Irish officer in the British Army Sir Joseph Napier, 4th Baronet (1895–1986), British baronet and soldier Joseph Napier (USCG) (c. 1826–1914), station keeper for the United States Life-Saving Service USCGC Joseph Napier, a Sentinel-class cutter of the United States Coast Guard