The Pontiac Sunbird is a model line that was manufactured and marketed by Pontiac from the 1976 to the 1994 model years. Loosely deriving its name from the Pontiac Firebird, the Sunbird was introduced as the eventual replacement for the Pontiac Astre, replacing it entirely in 1978 as the smallest Pontiac.

Pontiac, or formally the Pontiac Motor Division of General Motors, was an American automobile brand owned, manufactured, and commercialized by General Motors. It was originally introduced as a companion make for GM's more expensive line of Oakland automobiles. Pontiac quickly overtook Oakland in popularity and supplanted its parent entirely by 1933, in turn establishing its position as one of GM's dominant divisions.