| William T. Carroll | |
| Office: | Connecticut State Treasurer |
| Term Start: | 1945 |
| Term End: | 1947 |
| Governor: | Raymond E. Baldwin Charles Wilbert Snow |
| Predecessor: | Carl M. Sharpe |
| Successor: | Joseph A. Adorno |
| Order2: | 91st |
| Office2: | Lieutenant Governor of Connecticut |
| Term Start2: | 1949 |
| Term End2: | 1951 |
| Governor2: | Chester Bowles |
| Predecessor2: | Robert E. Parsons |
| Successor2: | Edward N. Allen |
| Birth Name: | William Thomas Carroll[1] |
| Birth Date: | 25 June 1902 |
| Birth Place: | Torrington, Connecticut, U.S. |
| Death Place: | Torrington, Connecticut, U.S. |
| Party: | Democratic |
William Thomas Carroll (June 25, 1902 – October 25, 1992) was an American politician who was the 91st lieutenant governor of Connecticut from 1949 to 1951.[2]
William T. Carroll was born in Torrington, Litchfield County, Connecticut, June 25, 1902[3] He graduated from Torrington High School and worked for the Brooks Bank and Trust Company in Torrington for 25 years.[4]
Carroll was a Democrat. He was Connecticut State Treasurer from 1945, but was defeated for reelection in 1946, thus ending his term in early 1947. In 1948, he was running mate of gubernatorial candidate Chester Bowles and won, they entered service on January 5, 1949. They ran for reelection in November 1950, but lost and ended their service on January 3, 1951.
Carroll lost bids for the United States Senate in 1952 and the Governorship in 1954. He was the mayor of Torrington from 1953 to 1957. From 1962, he ran a real-estate office in Hartford.
He died on Sunday October 25, 1992, in Torrington, at the age of 90.[4]