St. Michael's Cathedral is the mother church of the Diocese of Springfield in Massachusetts, United States, established in 1847.

Gallagher began construction of the current sanctuary on State Street in Springfield, Massachusetts in 1860, and completed in 1861, based on plans from noted Brooklyn architect Patrick Keely.

When Pope Pius IX established the present Diocese of Springfield in Massachusetts in 1870, St. Michael's church became its cathedral.

From the year 2000, the cathedral has been home to The St. Michael's Cathedral Choir, whose purpose is to serve the bishop, sing at ordinations and other high masses, and perform the annual festival of Lessons and Carols and Tenebrae service during Advent and Lent, respectively.

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