George Albert Guertin was an American Roman Catholic bishop.
Guertin, George Albert was born on February 17, 1869 in Nashua, New Hampshire, United States. Son of George and Louise (Lefebvre) Guertin.
After attending St. Hyacinthe College in Quebec and St. Charles College in Sherbrooke, he studied at St. John's Seminary in Brighton, Massachusetts. He was the first alumnus of St. John's to become a bishop.
He was ordained to the priesthood by Bishop Denis Mary Bradley on December 17, 1892. He was a curate in Manchester and Lebanon before serving as pastor of St. Anthony's Church. On January 2, 1907, Guertin was appointed the third Bishop of Manchester by Pope Pius X. He received his episcopal consecration on the following March 19 from Archishop Diomede Falconio, with Bishops Matthew Harkins and Michael Tierney serving as co-consecrators.
His tenure lasted for over 24 years (the longest in the history of the Manchester Diocese), and spanned the industrial changes of the early twentieth century, the hardship of World War I, the economic distress of mill closings, and ultimately the Great Depression. He died at age 62.