Weengallon is a rural locality in the Goondiwindi Region, Queensland, Australia.

The significant cultural area of the Ngaru-gi Gali ('to drink') or Weengallon rock wells are four large water holes, some twelve metres deep, and several smaller ones.

These wells were used by the Indigenous Australians, including the Kalkadoon as they moved from Mount Isa south for ceremonies and business towards Goondiwindi, and further coastal towards the Bunya Mountains.

The Weengallon property was in existence by 1867, although in July that year, the 80 square miles (210 km2) run was forfeited for sale.

[3] While for cattle, it was noted in 1906 that there was not always water, and a distance from a railway station or siding.