Dennis Gerard Walsh (born June 16, 1965) is an American bishop of the Catholic Church.

He received a bachelor's degree in philosophy from St. Alphonsus College in Suffield, Connecticut.

Walsh was ordained a priest on May 27, 1992 in the Crypt Church of the Basilica of the National Shrine of the Immaculate Conception in Washington, D.C.[1] His first assignment was to Iglesia de San Antonio de Padua in Guayama, Puerto Rico where he studied Spanish.

[1][2] On June 25, 2024, Pope Francis named Walsh the tenth bishop of the Diocese of Davenport.

[2][3] He was ordained and installed as bishop on September 27, 2024 in Sacred Heart Cathedral in Davenport, Iowa.