Thomas Lindall Winthrop was a Massachusetts politician who served as the 13th lieutenant governor of Massachusetts from 1826 to 1833. He was elected both a Fellow of the American Academy of Arts and Sciences in 1813 and a member of the American Antiquarian Society in 1837.

The lieutenant governor of Massachusetts is the first in the line to discharge the powers and duties of the office of governor following the incapacitation of the Governor of Massachusetts. The constitutional honorific title for the office is His, or Her, Honor.