The red-legged kittiwake (Rissa brevirostris) is a seabird species in the gull family Laridae.

Apart from the distinguishing feature implicit in its name, it is very similar to its better-known relative, the black-legged kittiwake; other differences include the shorter bill, larger eyes, a larger, rounder head, and darker gray wings, and in the juveniles, which barely differ from the adults, lacking the black tail band and "W" across the wings of juvenile black-legged kittiwakes.

The red-legged kittiwake feeds on fish such as lanternfish (Myctophidae), squid, and invertebrates.

It spends the summer at the cliff breeding colonies, nesting on ledges, and migrates out to sea in September to overwinter in the northwestern Pacific Ocean and the Gulf of Alaska.

It has a global population in the region of 337,000 to 377,000 mature individuals and its breeding range is 192,000 km2 (74,000 sq mi).