Ichthyaetus is a genus of gulls. The genus name is from Ancient Greek ikhthus, "fish", and aetos, "eagle". They were previously included in the genus Larus.

1/ Pallas's gull (Mòng bể đầu đen lớn, Ichthyaetus ichthyaetus), also known as the great black-headed gull
earlier placed in the genus Larus.

2/ Relict gull or Central Asian gull (Mòng bể relic, Ichthyaetus relictus)