Coster is a Dutch occupational surname. Notable people with the surname include:
Anne Vallayer-Coster (1744–1818), French painter
Arnold Coster (born 1976), Dutch mountaineers
Charles Coster (1837–1888), American soldier and public official
Charles De Coster (1827–1879), Belgian novelist
Dick Coster (born 1946), Dutch sailor, father of Sven and Kalle Coster
Dirk Coster (1889–1950), Dutch physicist
Coster–Kronig transition named after him
Elizabeth Coster (born 1982), New Zealand swimmer
Francis Coster (1532–1619), Flemish Jesuit theologian
Herman Coster (1865–1899), Dutch lawyer and soldier
Howard Coster (1885–1959), British photographer
Janet Coster, English operatic mezzo-soprano
John Coster (1838–1886), New Zealand politician
Kalle Coster (born 1982), Dutch sailor, son of Dick Coster
Keith Coster (1920–2012), South African army officer
Laurens Janszoon Coster (c. 1370–c. 1440), Dutch printer
Moses Elias Coster (c.1791–1848), Dutch diamond cutter
Nick Coster (born 1985), Dutch footballer
Nicolas Coster (1934–2023), British-born American actor
Ritchie Coster (born 1967), English actor
Salomon Coster (c. 1620–1659), Dutch clockmaker
Samuel Coster (1579–1665), Dutch playwright
Stan Coster (1930–1997), Australian country musician
Sven Coster (born 1978), Dutch sailor, son of Dick Coster
Tom Coster (born 1941), American musician, father of Tommy
Tracy Coster (born 1966), Australian country music singer
Willem Jacobszoon Coster (1590–1640), Dutch Governor of Ceylon
Coster-Waldau
Nikolaj Coster-Waldau (born 1970), Danish actor
Nukaaka Coster-Waldau (born 1971), Greenlandic singer, actress, and model
See also
Koster (surname) De Coster