Clement Clarke Moore (July 15, 1779–July 10, 1863) is the credited author of A Visit from St. Nicholas (more commonly known today as Twas the Night Before Christmas).
Clement Clarke Moore was most famous in his own day as a professor of Oriental and Greek literature at Columbia College (now Columbia University). At General Theological Seminary he compiled a two volume Hebrew dictionary.
He was the only son of Benjamin Moore, a president of Columbia College and bishop of the Episcopal Diocese of New York, and his wife Charity Clarke. Clement Clarke Moore was a graduate of Columbia College (1798), where he earned both his B.A. and his M.A.. He was made professor of Biblical learning in the General Theological Seminary in New York (1821), a post that he held until 1850. The ground on which the seminary now stands was his gift.