Waynflete School is a private, coeducational, college preparatory day school established in 1898 for early childhood education to twelfth grade, in Portland, Maine.

William Waynflete, born William Patten, was Headmaster of Winchester College (1429–1441), Provost of Eton College (1442–1447), Bishop of Winchester (1447–1486) and Lord Chancellor of England (1456–1460). He founded Magdalen College, Oxford, and three subsidiary schools, namely Magdalen College School in Oxford, Magdalen College School, Brackley in Northamptonshire and Wainfleet All Saints in Lincolnshire.