Marjorie Olson Barstow (November 6, 1935 - July 21, 2020) was a Rhode Island-based artist and illustrator. Born in Worcester, Massachusetts, she graduated from the prestigious Rhode Island School of Design in 1956 and went on to a career as an illustrator for the City of Providence Planning Committee and The Providence Journal. Barstow also designed and built her own home on Lake Lashaway in southern Massachusetts.