A gens was a family in Ancient Rome in which all of the members typically bore the same nomen and claimed descent from a common ancestor.

Gens can also refer to:

People Jacob Gens (1903-1943), Jewish head of the Vilnius Ghetto Saint Gens (1104–1127), French hermit Véronique Gens (born 1966), French soprano singer Xavier Gens (born 1975), French film director

Other uses Gens (anthropology), a group of people related through their female or male ancestor Gens (band), Italian pop band Gens (behaviour), a specific lineage of animals sharing a specific behavioral trait, inherited from a common ancestor Gens (emulator), an emulator of the Sega Mega Drive / Genesis video game console