Daniel Leonard (1740–1829) was a Loyalist in the American Revolution.
Daniel Leonard may also refer to:
Dan Leonard (born 1949), a former member of the Indiana House of Representatives Daniel Leonard (c. 1818–1878), whose wife Mary Leonard (1845–1912) was accused and acquitted for his murder Admiral Daniel Leonard, a character from the Star Trek: Enterprise series premiere "Broken Bow" Daniel Leonard Nigro, an American musician, songwriter, instrumentalist, and record producer Daniel L. Norris, (1935–2008), a commissioner of the Northwest Territories (Canada) Daniel Leonard James Poulter (born 1978), a British Conservative Party politician
See also Don Leonard (1925–2002), a South African film actor Dion Leonard (born 1975), an Australian/British endurance athlete and ultramarathon runner, motivational speaker, and author Leonard Daniel Andreas Terfelt (born 1976), a Swedish actor