Coste is a surname. Notable people with the surname include:
- Alert V. Coste, Assistant Secretary of the Navy (Financial Management and Comptroller) (January 10, 1993 – December 11, 1993)
- Alexandre Coste (born 2003) is the son of Albert II, Prince of Monaco and Nicole Coste
- Carlos Coste (born 1976), a free-diver from Venezuela
- Charles Coste (born 1924), a French cyclist
- Christian Coste (born 1949), a former professional French footballer
- Christopher Robert Coste (born 1973), an author and Major League Baseball catcher
- Claudio Di Coste (born 1954), Italian volleyball player
- Elisabeth Coste (1748–1794), French cloth merchant and resistor
- Émile Coste (1862–1927), a French fencer
- Georges Coste (born Perpignan, 1944), a French rugby union coach and former player
- Gérard Coste (born 1939), a French painter and diplomat
- Jean-Baptiste Coste (1777–1809), a French painter
- Joanne Koenig Coste an advocate for patients with Alzheimer's Disease
- Jorge Coste (disambiguation), several people
- Jules Coste (journalist) (1840–1910)
- Louis de La Coste (1675–1750), a French composer
- Louise Zoé Coste or Louise Zoé Meynier (1805–?), a French painter
- Melanie Coste (born 1976), a French pornographic actress
- Michel Saloff Coste (born 1955), a French artist and professor
- Napoléon Coste (1805–1883), a French guitarist and composer
- Nicole Coste (born Lomé, 1971), a former Air France flight attendant from Togo
- Numa Coste (1843–1907), French painter and journalist.
- Paul Coste-Floret (1911–1979), a French politician
- Sharon Coste (born 1963), a French soprano of Canadian origin
- Xavier Pascal Coste (1787–1879), a French architect
See also
- Conservatoria delle Coste
- Coste Rocks Provincial Park
- Lacoste
- Saint-Paul-la-Coste
- Saint-Victor-la-Coste
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