Perryman is an unincorporated community and census-designated place (CDP) in Harford County, Maryland, United States.

[2] St. George's Parish Vestry House was listed on the National Register of Historic Places in 1976.

[4] It is bordered to the west by Church Creek and the Bush River, an arm of Chesapeake Bay; to the south by Sod Run, an inlet of the Bush River; to the east by Chelsea Road and Aberdeen Proving Ground; and to the north by the city of Aberdeen.

U.S. Route 40 (Pulaski Highway) runs through the northern part of Perryman, leading northeast 23 miles (37 km) to Elkton and southwest 27 miles (43 km) to downtown Baltimore.

[2] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.