How many reindeer are featured in the poem ""twas the night before christmas?""

Eight

Explanation:

In the poem "'Twas the Night Before Christmas," the author Clement C. Moore makes reference to eight reindeers:

When, what to my wondering eyes should appear,

but a miniature sleigh, and eight tiny rein-deer,

with a little old driver, so lively and quick,

I knew in a moment it must be St. Nick.

In the original 1823, the eight reindeers' names are Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Dunder and Blixmen. However, more modern alterations have changed the names of the last two reindeers:

I knew in a moment he must be St. Nick.

More rapid than eagles his coursers they came,

And he whistled, and shouted, and called them by name:

"Now, Dasher! now, Dancer! now Prancer and Vixen!

On, Comet! on, Cupid! on, Dunder and Blitzen!