Clarence J. Brown, American publisher and politician, 36th Lieutenant Governor of Ohio (died 1965)

Clarence James Brown Sr. was an American politician; he represented Ohio as a Republican in the United States House of Representatives from 1939 until his death in Bethesda, Maryland in 1965. Long representing conservative views, near the end of his life, he helped gain House passage of the Voting Rights Act of 1965, which he voted for to provide enforcement of the right to vote for all citizens, while also voting in favor of the Civil Rights Act of 1957, 1960, and 1964.

The position of lieutenant governor of Ohio was established in 1852. The lieutenant governor becomes governor if the governor resigns, dies in office or is removed via impeachment conviction. Before 1852, the president of the Ohio State Senate would serve as acting governor if a vacancy in the governorship occurred. Until 1978, lieutenant governors were elected separately but concurrently with the governor. Thus, there were several occasions when the lieutenant governor was from a different party than the governor. This was changed by constitutional amendment. In 1974, Richard F. Celeste was the last lieutenant governor to be elected separately. In 1978, George Voinovich became the first lieutenant governor to be elected on the same ticket with the governor.