Marissa Moss (born September 29, 1959, Jeannette, Pennsylvania) is an American children's book author.

Earlier in her career Marissa Moss wrote and illustrated several children's books not in journal format.

These include After School Monster, Wanna Play?, But Not Kate, Regina's Big Mistake, Mel's Diner, In America, and The Ugly Menorah, although most of these are now out of print.

Payne: True Heart, Brave Harriet: The First Woman to Fly the English Channel, and Mighty Jackie: The Strikeout Queen.

Moss illustrated G is For Googol: A Math Alphabet Book, which was written by David Schwartz.