Robert William Davis (July 31, 1932 – October 16, 2009) was an American politician from the state of Michigan.

In 1966, Davis was elected as a Republican to the Michigan House of Representatives from the state's 106th District and was reelected in 1968.

The Congress ran its own bank and allowed members who wished to do so to frequently write overdrawn or insufficient fund checks to their account.

According to the Chicago Sun-Times of May 31, 1989, Davis revealed that he hired a woman with whom he lived for his committee staff, but he said he had not violated House rules.

He acknowledged recommending that Brook Ball, 27, 29 years his junior, be hired for the House Merchant Marine staff.

Davis died at a hospice in Arlington, Virginia at age 77 of heart and kidney failure.