The thick-billed ground pigeon (Trugon terrestris), also known as the jungle pigeon or the slaty/grey ground pigeon, is a species of bird in the family Columbidae. It is monotypic within the genus Trugon. Native to New Guinea, its natural habitat is moist tropical lowland forest.
This robust species grows to a length of 33 cm; the sexes are similar in appearance. The upper parts are a uniform bluish-grey or brownish-grey, the breast is grey and the belly orangey-buff. The beak is broad with a pale tip, the ear coverts are pale and there is a short crest on the nape. The underwing coverts are boldly streaked in black and white but the tail is unbanded. The legs are pink.