Eight. But in the book I have, it only shows six in one of the illustrations, which has bugged me since I was a small child. :)

It's eight "tiny" reindeer.

Eight

8

All of them.

364...but they only said 8 names. The rest didn't have names and were off playing reindeer games.

9 ..........I counted Rudolf

I just realized I did not count Rudolf...… Poor guy is always left out LOL.

Judy, Rudolph did not join Santa's team until sometime in the late '30s or early '40s. "Twas the Night Before Christmas" was written in the early to mid 1800s, so he would not have been featured in the original poem. But, I am just assuming that the question is about the original poem.

Rusty