The Basilica of St. Stanislaus is a Roman Catholic minor basilica dedicated to Stanislaus of Szczepanów located in Chicopee, Massachusetts. The church is under the circumscription of the Roman Catholic Diocese of Springfield in Massachusetts and serves St. Stanislaus Bishop & Martyr's Parish. The church was completed in 1908 to the designs of Robert J. Reiley and Gustave E. Steinback of the firm Reiley and Steinback. The basilica was decreed on June 25, 1991.