Lacoste is a French apparel company. Lacoste (or LaCoste) may also refer to:
- People
- Alexandre Lacoste (1842–1923), Canadian politician
- Amélie Lacoste (born 1988), Canadian figure skater
- Carlos Lacoste (1929–2004), Argentine president
- Catherine Lacoste (born 1945), French golfer
- Jean-Pascal Lacoste, French singer, actor and TV host
- Jean de Lacoste (1730–1820), lawyer in the parliament of Bordeaux
- Jean-Baptiste Lacoste (died 1821), lawyer
- Jean Lacoste, French-German philosopher
- Jean-Yves Lacoste, French postmodern theologian
- Louis Lacoste (1798–1878), Canadian politician
- Louis Lacoste (composer) (c. 1675 – c. 1750), French composer
- Lucien LaCoste (1908–1995), American physicist
- Paul Lacoste (academic) (1923–2009), Canadian lawyer and academic administrator
- Paul V. Lacoste (born 1974), linebacker in the Canadian Football League
- René Lacoste (1904–1996), French tennis player and founder of the apparel company Lacoste
- Robert Lacoste (1898–1989), French politician
- Yves Lacoste (born 1929), French geographer and geopolitician
- Places
- Lacoste, Hérault, a commune of the Hérault département, in France
- Lacoste, Vaucluse, a commune and medieval village of the Vaucluse département, in France
- Château Grand-Puy-Lacoste, a winery in the Bordeaux region of France
- Castles
- Château de Lacoste, in Lacoste, Vaucluse, France
- Château de Lacoste (Lot), in Salviac, Lot, France
- Château de La Coste (Lot), in Grézels, Lot, France
- Political groupings
- Lacoste (political faction), Emmerson Mnangagwa's faction in the ZANU-PF party, Zimbabwe