The Nahdlatul Ulama Museum is an Indonesian museum that documents the culture and history of the Nahdatul Ulama. Opened on 25 November 2004 by Abdurrahman Wahid, the museum is located in Surabaya, Indonesia. The NU Congress inaugurated the museum with the help of Ra'is Aam as Chairman of NU and KH. M. Sahal Mahfudh.