Maryborough–Biggenden Road is an 83.4 kilometres (51.8 mi) road route in the Fraser Coast and North Burnett regions of Queensland, Australia. The entire route is signed as State Route 86. The Maryborough–Biggenden Road (number 478) is a state-controlled district road, rated as a local road of regional significance (LRRS). Road 478 is not continuous from end to end, being broken midway by a part of Brooweena - Woolooga Road (number 487) and by Boompa Road (number 479).