Tumoulin is a rural town and locality in the Tablelands Region, Queensland, Australia.

[1] From south to north Tumoulin is a flat valley with Diddleluma Creek flowing through it, elevation approx 950 metres (3,120 ft) above sea level.

However, it is more mountainous in both the east and west, rising to approx 1,100 metres (3,600 ft).

[4] The land use is cropping on the valley floor, grazing on the lower slopes, and forestry in the more mountainous areas.

[2] The railway line from Atherton to Ravenshoe was closed in 1988 due to the World Heritage Listing of Queensland's Wet Tropics.