John Woodland Crisfield was a U.S. Representative from Maryland, representing the sixth district from 1847 to 1849 and the first district from 1861 to 1863. The city of Crisfield, Maryland, is named after him. Crisfield was a strong supporter of the Union during American Civil War, opposing moves towards Maryland's secession. However, Crisfield also supported the institution of slavery and worked to prevent its abolition in Maryland.

Maryland's 6th congressional district elects a representative to the United States House of Representatives from the northwest part of the state. The district comprises all of Garrett, Allegany, Frederick, and Washington counties as well as a portion of Montgomery County. David Trone (D) is its current representative.