Peaslee is a surname. Notable people with the surname include:

Charles H. Peaslee (1804–1866), U.S. Representative from New Hampshire Horace Peaslee (1884–1959), American architect and landscape designer Janice L. Peaslee (born 1935), American politician John Peaslee (c. 1951–2024), American screenwriter and producer Richard Peaslee (1930–2016), composer for the theatre in London Robert J. Peaslee (1864–1936), American lawyer and judge

See also Janice Peaslee Bridge, a pin-connected steel & wrought iron Pratt through truss bridge connecting Stratford, New Hampshire to Maidstone, Vermont Peasley, a surname