Tiomaniella is a monotypic genus of spiders in the family Sparassidae containing the single species, Tiomaniella ladam.
Tiomaniella ladam is endemic to Tioman Island, 32 km off the coast of Peninsular Malaysia.
The genus is named after Tioman Island. The species name is from Malay "horseshoe", referring to the brown U-shaped patterning of the prosoma.