Utricularia tridactyla is a terrestrial bladderwort endemic to the Kimberley Region of Western Australia. It is named after its three flower lobes which resemble a claw.

Utricularia tridactyla is a small plant with scapes that reach around 20 cm tall and flowers about 1.5 cm across. The lower corolla lip has three thin, deeply divided lobes that are rounded at the edge. The upper corolla lip is angled but straight, with an edge that is shallowly to moderately notched. The corolla spur is long and moderately thin. The flowers are vivid purple with a set of yellow ridges at the palate. One or two blooms are usually produced per scape.

The species is mainly known around Kununurra in Western Australia, where it inhabits grassy, open clearings in flat areas, as well as seeps in the gently undulating foothills. It tends to prefer waterlogged soils. The plant is an annual, growing and flowering towards the end of the wet season before dying as its environment dries out during the dry season.

Utricularia tridactyla is most similar to the purple form of U. kamienskii, although the two species do not overlap in range. When U. tridactyla is viewed from the side, the lower corolla lip forms a single angle with the corolla spur (the side profile of U. kamienskii has two distinct bends). U. tridactyla is somewhat similar to the sympatric U. cowiei. It is distinguished by the smaller upper corolla lip and thinner lower corolla lip lobes (the upper corolla lip of U. cowiei is usually somewhat dilated and the lower corolla lip lobes are usually fatter).