A cruller () is a deep-fried pastry like a doughnut popular in Europe and North America often made from a rectangle of dough with a cut made in the middle that allows it to be pulled over and through itself, producing twists in the sides of the pastry. The cruller has been described as resembling "a small, braided torpedo". Some other cruller styles are made of a denser dough somewhat like that of a cake doughnut formed in a small loaf or stick shape, but not always twisted. Crullers may be topped with powdered sugar (sometimes mixed with cinnamon) or icing.

A French cruller is a fluted, ring-shaped doughnut made from choux pastry with a light airy texture. The German Spritzkuchen is very similar, while the Dutch and Belgian sprits is baked instead of being fried.