Donald Rathbun Dwight[2] (born March 26, 1931) is an American newspaper executive and politician who served as the 64th lieutenant governor of Massachusetts from 1971 to 1975.

He also served as a South Hadley town meeting member, director of the J. Russell and Co. and the New England Daily Newspaper Association, trustee of the Mechanics Savings Bank, chairman of Massachusetts Newspaper Information Service, treasurer of the Concord Monitor and the Valley Photo Engraving Corp., and president of the Edwardsville Intelligencer.

Linsky's withdrawal came after it was revealed that police officers had once stopped his car and informed him that the woman he was traveling with was a prostitute.

[1][11] Dwight defeated State Senator John M. Quinlan and Springfield mayor Frank H. Freedman at the Republican convention to win his party's nomination for Lieutenant Governor.

[14] During Dwight's tenure as Lieutenant Governor, he kept a low profile and tried not to upstage Sargent due to his respect for him.

[15] Sargent and Dwight were defeated in the general election by the Democratic ticket of Michael Dukakis and Thomas P. O'Neill III 54% to 42%.

[20] In 1980, Dwight was the subject of a federal investigation relating to the awarding of a state contract during his time as Commissioner of Administration and Finance and Lieutenant Governor.

The investigation came after William V. Masiello, a former design firm owner, testified before the Special Commission Concerning State and County Buildings (also known as the Ward Commission after its chairman, John William Ward) that he paid Dwight $2000 in cash in exchange for a state contract.