Tyrannodoris tigris is a species of sea slug, a polycerid nudibranch, a marine gastropod mollusc in the family Polyceridae.

It is hypothesized that tambjamines are a chemical defence mechanism against feeding by the spotted kelpfish Gibbonsia elegans.

[3][4] This species is found in the Gulf of California to Bahia de Banderas.

[5] Tyrannodoris tigris can grow as large as 30 cm in length.

Like other nudibranchs in the genus Tyrannodoris, it is carnivorous and predatory, feeding on other sea slugs.