A Twist Serve, also known as an American Twist Serve, is a complex serving technique that combines topspin and slice to create deceptive ball movement.

The serve produces a curving trajectory during flight and generates a high bounce that moves in the opposite direction of the initial path. This advanced serve is particularly effective on hard courts and clay, where the spin effects are most pronounced. Players often use it to pull returners out of position or create awkward contact points.