Geni or GENI may refer to:
- Geni.com, a genealogy-related web service
- Geni (footballer) (b. 1980), Spanish football (soccer) player, full name Eugenio Suárez Santos
- Global Environment for Network Innovations, a planned National Science Foundation facilities project
- Global Energy Network Institute, a research and education organization focusing on electric power transmission networks between nations and continents
- Geni, Siliguri, a census town in Darjeeling district, West Bengal, India