The Tatnall School is a private college prep school in Greenville, Delaware, for students from three years old through 12th grade. The school was founded as an all-girls school in 1930 by Frances Dorr Swift Tatnall at her home in downtown Wilmington, Delaware, and moved to its current location in 1952. Tatnall began to admit boys in 1952 (the class of 1964). The school's mascot is the hornet.