Hennings is a surname. Notable people with the surname include:
- Artur Hennings (1940âÂÂ2003), German chess master
- Chad Hennings (born 1965), American football defensive lineman
- Emmy Hennings (1885âÂÂ1948), German performer and poet
- Ernest Martin Hennings (1886âÂÂ1956), American painter, member of Taos Society of Artists
- Fred Hennings (1895âÂÂ1981), Austrian actor
- John Hennings (c. 1833âÂÂ1898), theatrical scene painter in Australia
- Margit Hennings (born 1943), Austrian chess master
- Rouwen Hennings (born 1987), German football player
- Thomas C. Hennings Jr. (1903-1960), American politician, Congressional Representative and Senator from Missouri
- Andrew Hennings and Kate Hennings, fictional characters
- Sam Hennings, American Actor