The JP Tower (Japanese: JPタワー) is a high rise office building with integrated retail and restaurant facilities located in front of the Marunouchi Exit of Tokyo Station in Chiyoda ward, Tokyo.

The 38 story JP Tower replaces the former central mail sorting facility of Japan Post.

A large portion of the original five story low rise frontage of the Tokyo Central Post Office [ja], designed in 1931 by Tetsuro Yoshida, was preserved and redeveloped as the Kitte [ja] retail and dining facility.

[1] JP Tower tenants include offices of the Mitsubishi UFJ Financial Group.

The Intermediatheque, located in the renovated Central Post Office building on the 2nd and 3rd floor, serves as a museum of academic culture and a venue for workshops and seminars open to the general public.