The Pine Grove School House is a one room schoolhouse in the town of Avon, Connecticut, in the United States. It was built in 1865 and was originally named Schoolhouse # 7 as it was the school in the 7th town district at the time. In the 1920s a teacher re named the school Pine Grove School after noting a grove of pine trees at the top of the hill on West Avon Road. There is no plumbing at the school. The students were served by an outside pump and an outhouse. After the town closed the school in 1949 it was used as a branch library, nursery school, and home for the boy scouts.