The grey-headed fish eagle (Ichthyophaga ichthyaetus) is a bird of prey. Like all eagles, it is in the family Accipitridae.
The grey-headed fish eagle is a largish stocky raptor at about 70–75 cm in length. Adults have dark brown wings and back, a grey head and reddish brown breast. The lower belly, thighs and tail are white, the latter having a black terminal band. Sexes are similar, but young birds have a pale buff head, underparts and under wing, all with darker streaking.