Carl G. T. Olson (1875–1952) was a Swedish-American artist and educator known for his landscapes and his career as an assistant principal at Belmont High School in Massachusetts. Born in Sweden, he immigrated to the United States at 17, studied with artist Peter Roos, and became a naturalized citizen in 1902. After a successful art career, he retired from teaching in 1942 and was honored by the graduating class.