The Buick Terraza is a minivan from General Motors' Buick brand that was sold from the 2005 through 2007 model years. It filled the position of GM's luxury minivan that was previously occupied by the Oldsmobile Silhouette until the division's demise in 2004. The Terraza was built alongside its Chevrolet, Pontiac, and Saturn sisters; (Uplander, Montana SV6, and Relay) in Doraville, Georgia. Contrary to popular belief, the Terraza was not Buick's first minivan. In 2000, Buick released the GL8 to China. It remains solely to the Chinese market, where it is still in production today.

The fairly slow-selling Terraza (in Canada it enjoyed average sales, though it was not enough to let GM continue making it) was discontinued after the 2007 model year, and GM's Doraville plant has been scheduled for closure in 2008. Because of low sales of minivans, GM has decided to exit the minivan business altogether in the United States. The Terraza, alongside the related Rendezvous crossover SUV and the truck-based Rainier SUV, have all been replaced by the 8-passenger Buick Enclave crossover for 2008.