Two Logan Square
Two Logan Square in Center City Philadelphia
Location within Philadelphia Show map of Philadelphia Two Logan Square (Pennsylvania) Show map of Pennsylvania Two Logan Square (the United States) Show map of the United States
General information
Status	Completed
Type	Office
Location	100 North 18th Street, Philadelphia, Pennsylvania, U.S.
Coordinates	39°57′20″N 75°10′12″W / 39.9556°N 75.1699°W / 39.9556; -75.1699
Construction started	1984
Opening	1987
Owner	The Rubenstien Company
Height
Roof	435 ft (133 m)
Technical details
Floor count	35
Floor area	692,333 sq ft (64,319.8 m2)
Design and construction
Architect(s)	Kohn Pedersen Fox

Two Logan Square is a highrise office building in Center City Philadelphia just off the Benjamin Franklin Parkway. The building is known for its signature roofline with a backlit clock. It is a companion building to One Logan Square which stands across Cherry Street, and to Three Logan Square, across 18th Street.

The building, designed by the firm Kohn Pedersen Fox, was completed in 1987, the same year as One Liberty Place, which stood as Philadelphia's tallest building for 20 years.

The building's name is a nod to its neighborhood, Logan Square, so named for the nearby Logan Circle, one of William Penn's original five squares of Philadelphia.

Major tenants include the law firm Troutman Pepper LLP and Binswanger.

Previously the private school Delaware Valley High School had its administrative offices in Suite 1900.^[1]

• List of tallest buildings in Philadelphia
• List of tallest buildings by U.S. state
• List of tallest buildings in the United States
• List of tallest buildings in the world

• Emporis - Two Logan Square^[usurped]