Twentieth Century Club of Lansdowne is a historic club building located at Lansdowne, Delaware County, Pennsylvania. It was built in 1911, and is a -story, rectangular stone and brick building measuring 43 feet, 10 inches, by 95 feet, 6 inches. It has a small rear wing, slate pyramid-shaped roof with two projecting front gables, and a large articulated chimney.
It was added to the National Register of Historic Places in 1980.