Brandon Phelps (born September 10, 1970) is a Democratic member of the Illinois House of Representatives, representing the 118th District from January 2003 to September 2017. The 118th district, located in Southern Illinois, includes all or parts of Anna, Belknap, Belle Prairie City, Brookport, Broughton, Buncombe, Burnside, Cairo, Carbondale, Carrier Mills, Cave-In-Rock, Cypress, Dahlgren, Dongola, East Cape Girardeau, Eddyville, Eldorado, Elizabethtown, Equality, Galatia, Golconda, Goreville, Harrisburg, Joppa, Junction, Karnak, Makanda, Marion, McClure, McLeansboro, Metropolis, Mound City, Mounds, New Grand Chain, New Haven, Old Shawneetown, Olive Branch, Olmsted, Omaha, Pulaski, Raleigh, Ridgway, Rosiclare, Shawneetown, Simpson, Stonefort, Tamms, Thebes, Ullin, and Vienna. He resigned on September 1, 2017.
Phelps is the nephew of former U.S. Representative David D. Phelps.
Phelps sponsored the Illinois Transportation Taxes and Fees Lockbox Amendment in the Illinois House of Representatives.