William T. Doyle (May 8, 1926 – August 15, 2024) was an American politician, academic, and author who served as a Republican member of the Vermont Senate.

In 1958, Doyle became a professor of political science at Johnson State College, and continued to teach while serving in Vermont's part-time legislature.

[3] Doyle was first elected to the Vermont Senate in 1968,[5] after running unsuccessfully in the three-member at-large Washington County district in 1964 and 1966.

Doyle placed sixth of seven candidates in the 1964 Republican primary, but obtained enough write-in votes to win one of the three Democratic nominations, which he declined.

[5] Washington County continues to elect three senators at-large, and Doyle was routinely the highest finisher among the district's candidates.

[12] Attracting thousands of responses annually, the Doyle poll asks respondents for their views on about a dozen issues of the day.

[13] Despite the poll's unscientific nature, the results are widely reported on in Vermont media and considered a barometer of current public opinion.

[13] In 2016, Doyle was defeated for reelection; he finished fourth among the candidates running at-large in his State Senate district; incumbents Ann Cummings (Democrat) and Anthony Pollina (Progressive/Democrat) were reelected, and the third-place finisher was Democrat Francis K. Brooks, former Majority Leader of the Vermont House of Representatives and former Sergeant-at-Arms of the Vermont State House.

[18] At a ceremony to celebrate the event, he was designated professor emeritus, and a granite bench created to recognize his contributions to the college was installed outside the campus library.