Thomasset's Seychelles frog (Sooglossus thomasseti) is a species of frog in the family Sooglossidae. It is endemic to Seychelles. The natural habitats of this frog are subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, rivers, and intermittent rivers. Eggs are laid among rocks and hatch into miniature adults, bypassing a larval stage. The species is threatened by habitat loss.