Sega is a multinational video game software developer and hardware development company.
Sega or SEGA may also refer to:
- Sega (genre), a music genre that originated in Mauritius
- Sega Pinball, a former division of Sega for pinball and arcade machines
- Subependymal giant cell astrocytoma, a low grade brain tumor associated with tuberous sclerosis
People with the surname[edit]
- Andrew Sega (born 1975), American musician
- Filippo Sega (1537–1596), Italian bishop and cardinal
- Francesco della Sega (1528-1565), Italian antitrinitarian executed by the Venetian Inquisition
- Giovanni del Sega (c. 1450–1527), Italian painter
- Ronald M. Sega (born 1952), professor of systems engineering, former NASA astronaut