Dundas is a rural locality in the Somerset Region, Queensland, Australia. In the 2011 census, Dundas was counted within the larger area of Crossdale which had a population of 190 people. A majority of Dundas is protected within the D'Aguilar National Park. Several peaks of the D'Aguilar Range are in Dundas, including Mount Sim Jue, The Bulls Knob, Northbrook and Tenison Woods Mountain, the highest peak on the range. The Northbrook Parkway is the only crossing over the D'Aguilar Range, connecting the south of the Somerset Region with the Moreton Bay Region.