Mérignac is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France. The 20th-century historian Robert Étienne was born in Mérignac.
It is the largest suburb of the city of Bordeaux and adjoins it to the west. It is a member of the metropolitan Urban Community of Bordeaux.
Mérignac is the site of Bordeaux International Airport.
Coordinates 44°50'32.05" N -0°38'49.056" E