Henry Klonowski (March 8, 1898 – May 6, 1977) was a bishop of the Catholic Church in the United States.
He served as auxiliary bishop of the Diocese of Scranton from 1947 to 1973.
On May 10, 1947, Pope Pius XII appointed him as the Titular Bishop of Daldis and Auxiliary Bishop of Scranton.
The principal co-consecrators were Bishops George Leech of Harrisburg and Auxiliary Bishop Stephen Woznicki of Detroit.
He served as an auxiliary bishop until his resignation was accepted on May 15, 1973.