Donnel is a given name. Notable people with the name include:
Donnel Baird (born 1981), American climate entrepreneur and political organizer Byron Donnel Beamss (1935–1992), American footballer Henry Donnel Foster (1808–1880), American lawyer and politician Donnel Foster Hewett (1881–1971), American geologist and mineralogist Donnel Pumphrey (born 1994), American college football coach and former player Khalid Donnel Robinson (born 1998), known as Khalid, American singer and songwriter Donnel Thompson (born 1978), American former professional football player