Fels is a surname. Notable people with the surname include:
- Allan Fels AO (born 1942), Australian economist, lawyer and public servant
- Anthony Fels (born 1964), former Australian politician
- Edmond de Fels (1858–1951), French diplomat, writer and historian, built the castle "Château de Voisins"[1] in 1903-06 by Rene Sergent
- Florent Fels (1891–1977), French journalist, publisher and author
- Joseph Fels (1853–1914), American soap manufacturer, millionaire, and philanthropist
- Laurent Fels, writer and high school teacher in Luxembourg
- Mary Fels (1863–1953), German-born, American philanthropist, suffragist, Georgist; wife of Joseph Fels
- Samuel Simeon Fels (1860–1950), American businessman and philanthropist
- Willi Fels CMG (1858–1946), New Zealand merchant, collector and philanthropist