The Gulf Plains, an interim Australian bioregion (IBRA), is located in the Northern Territory and Queensland, comprising 22,041,825 hectares (54,466,540 acres). It is one of 89 such bioregions defined in Australia, with 419 subregions as of IBRA version 7, compared with the 85 bioregions and 403 subregions described in IBRA6.1. The code for the bioregion is GUP.