1900 Rittenhouse Square Apartments

The 1900 Rittenhouse Square Apartments is a historic high-rise building on Rittenhouse Square in downtown Philadelphia, Pennsylvania. It was built 1923–1926.

The 190 foot tall, 19-story building has been converted to condominiums.

1900 Rittenhouse Square was added to the National Register of Historic Places in 1982. It was listed on the Philadelphia Register of Historic Places on January 7, 1982, and February 8, 1995.