Koseinenkin Hall, Osaka

Large concert hall in the Nishi-ku area of Osaka, Japan. Also known as Koseinenkin Kaikan (厚生年金会館).

Opened on April 14, 1968. It seated 2400 and was the largest concert hall in Osaka at the time of its opening. The same complex also included a smaller hall, lodging facilities and two restaurants. The building was sold in October 2009 to Orix Real Estate, who currently run it under the name the Orix Theater, Osaka.