Glas (Hans Glas GmbH) is a former German automotive company. Glas may also refer to:
- Glas (film), a 1958 Academy Award-winning Dutch documentary film
- Glas (book), a 1974 book by French philosopher Jacques Derrida
- Doktor Glas, a 1905 novel by Swedish writer Hjalmar Söderberg
- GLAS, Gladiator's Assault, a Yu-Gi-Oh booster pack expansion
in geography:
- Eilean Glas, a name given to multiple islands in Scotland
- Eilean Glas, Scalpay, a peninsula on the Scottish island of Scalpay that houses a historic lighthouse
Glas is the surname of:
- Uschi Glas (born 1944), German film and television actress
- John Glas (1695-1773), Scottish clergyman
- George Glas (1725-1765), Scottish mariner
- Eochaid Faebar Glas, a mythical High King of Ireland
