8 reindeer pull the sleigh of Santa Claus.
By the way, this is from the poem of Clement C. Moore, “A Visit from St. Nicholas” and the names of the reindeers are Dasher, Dancer, Prancer, Vixen, Comet and Cupid, and the final two Donner and Blitzen. Rudolph, the red-nosed reindeer, was added by Robert L. May and shows the way.
Source: Clement C. Moore – A Visit from St. Nicholas