Joseph H. O'Donnell, Jr. (May 22, 1925 – December 12, 2005) was the Lieutenant Governor of the U.S. state of Rhode Island from 1967 to 1969.
He is the only Republican elected lieutenant governor of Rhode Island since 1940, though Bernard Jackvony was later appointed to fill a vacancy.
In 1963, O'Donnell began working as the director of the Rhode Island Department of Administration.
In 1964, he ran unsuccessfully for Lieutenant Governor of Rhode Island.
In July 1966, he resigned from the Department of Administration to campaign full-time as a candidate for Lieutenant Governor.