Delaware County National Bank is a historic bank building in Chester, Pennsylvania, located at the southwest corner of 3rd Street and Avenue of the States (formerly Market Square) adjacent to the Old St. Paul's Church burial ground.

The roof features metal cresting, five projecting decorated chimneys, and four Corinthian order pilasters supporting the front pediment dormer.

[2] During the construction of the current building in 1882, the Bank transacted business in the old kitchen annex of the cashier's home.

The building was razed and the current Delaware County National Bank was built on the same site.

[6] In 1930, the building stopped serving as the offices of the Delaware County National Bank.