Euoplos grandis, also known as the Toowoomba trapdoor spider, is a species of mygalomorph spider in the Idiopidae family.

It was described in 2019 by Australian arachnologists Jeremy Wilson, and Michael Rix.

[1][2] The species occurs in south-east Queensland in the Darling Downs region.

The type locality is west of Dalby in the Western Downs.

[1][2] This Idiopidae article is a stub.