Joseph B. Gill (17 February 1862 – 22 September 1942) was an American politician.

He joined the Democratic Party and in 1888 he was elected to the Illinois House of Representatives, where he remained until 1892.

After the end of his time as Lieutenant Governor he served for a few months as Member of the State board of Arbitration.

For health reasons he moved to San Bernardino, California where he became the chairperson of the Board of Trade.

He was also in charge of the Highway Commission of the San Bernardino County, California.