Messier may refer to:
People with the surname Ashley Messier (born 2002), Canadian ice hockey player Charles Messier (1730–1817), French astronomer Doug Messier (born 1936), Canadian ice hockey player and coach Éric Messier (born 1973), Canadian ice hockey player George Messier (1896–1933), French inventor Jean-Marie Messier (born 1956), French businessman Joby Messier (born 1970), Canadian ice hockey player Lauren Messier (born 2003), Canadian ice hockey player Marc Messier (1947–2026), Canadian actor and film-maker Mark Messier (born 1961), Canadian ice hockey player Mary Messier (born 1952), American politician Mitch Messier (born 1965), Canadian ice hockey player Paul Messier (ice hockey) (born 1958), Canadian ice hockey player Paul Arthur Messier (born 1962), American art conservator
Other uses Messier Channel in western Patagonia, Chile Messier objects, set of 110 astronomical objects Messier (crater) on the Moon Messier (automobile), French car manufacturer 1925–1931 Messier-Dowty (and succeeding companies), manufacturers of aircraft landing gear