In the religion of ancient Rome, a haruspex (plural haruspices; also called aruspex) was a person trained to practise a form of divination called haruspicy (haruspicina), the inspection of the entrails (exta—hence also extispicy (extispicium)) of sacrificed animals, especially the livers of sacrificed sheep and poultry. The reading of omens specifically from the liver is also known by the Greek term hepatoscopy (also hepatomancy).

The Roman concept is directly derived from Etruscan religion, as one of the three branches of the disciplina Etrusca. Such methods continued to be used well into the Middle Ages, especially among Christian apostates and pagans.

The Latin terms haruspex and haruspicina are from an archaic word, hīra = "entrails, intestines" (cognate with hernia = "protruding viscera" and hira = "empty gut"; PIE *ǵʰer-) and from the root spec- = "to watch, observe". The Greek ἡπατοσκοπία hēpatoskōpia is from hēpar = "liver" and skop- = "to examine".