Neysa Moran McMein (born Marjorie Frances McMein; January 24, 1888 – May 12, 1949) was an American illustrator and portrait painter who studied at The School of The Art Institute of Chicago and Art Students League of New York. She began her career as an illustrator and during World War I, she traveled across France entertaining military troops with Anita P. Wilcox and Jane Bulley and made posters to support the war effort. She was made an honorary non-commissioned officer in the United States Marine Corps for her contributions to the war effort.