Koseinenkin Kaikan

Music/concert hall in Shinjuku, Tokyo.
Opened 1961, closed 2010.

Tokyo Kōsei Nenkin Kaikan (東京厚生年金会館), also known as Wel City Tokyo, was a concert hall in Shinjuku, Tokyo. One of a number of public concert halls in Japan called Kōsei Nenkin Kaikan. Opened on April 15, 1961, and closed on March 31, 2010.

On English recordings often denoted as Kohseinenkin Hall, Kousei Nenkin Hall; Koseinenkin Hall; Shinjuku Koseinenkin Hall, Tokyo; Life Insurance Hall; Tokyo Post Office Life Insurance; Annuties Hall; Wel City Tokyo, amongst others.