Glas is a Lowland Scottish, Dutch or Low German metonymic surname meaning "glass". It is also an Irish and Highland Scottish surname meaning "green". Notable people with the surname include:
Arend Glas (born 1968), Dutch bobsledder Erich Glas (1897–1973), German-Israeli artist George Glas (1725–1765), Scottish mariner Gerrit Glas (born 1954), Dutch professor Gotthard Glas, birth name of Uziel Gal (1923–2002), German-born Israeli gun-designer Hanna Glas (born 1992), Swedish footballer Hans Glas (1890–1969), German entrepreneur who built cars with the brand Glas, which was bought by BMW. Imke Glas (born 1994), Dutch artistic gymnast John Glas (1695–1773), Scottish clergyman Jorge Glas (born 1969), Ecuadorian Vice President Jürgen Glas (born 1956), German swimmer Konrad Glas (1940–2016), German sailor Rich Glas (born 1948), American basketball coach Stéphane Glas (born 1973), French rugby player Tyko Gabriel Glas, fictional character in the Swedish novel Doctor Glas (1905) Uschi Glas (born 1944), German film and television actress
See also Glasite, Scottish denomination founded by John Glas John S. Glas Field House, American hockey arena renamed in honour of John S. Glas George Glas Sandeman Carey (1867–1948), British army officer Seaán Glas mac Tadhg Riabhach Ó Dubhda (died c. 1471), Irish Chief of the Name and Lord of Tireragh An Giolla Glas Ó Caiside (fl. 1515–27), Gaelic-Irish physician and scribe Eochaid Faebar Glas, legendary High King of Ireland