In Greek mythology, Amphinomus (; Ancient Greek: Ἀμφίνομος Amphínomos; literally "between or around laws". From the root words Amphi/Ancient Greek: Ἀμφί: Between or on both sides, or around; and Nomus/Nomos:Ancient Greek: νομος: Rules/Laws) may refer to the following personages:
Amphinomus, the Aetolian father of Thyrie (Hyria) who became the mother of Cycnus by Apollo.
Amphinomus, a prince of Dulichium as the son of King Nisos. He was one of the suitors of Penelope and was considered the best-behaved of them. Despite Odysseus's warning, Amphinomus was compelled by Athena to stay, as he had been a suitor nonetheless. He was killed by a spear thrown by Telemachus during the Ithaca massacre; ironically, Amphinomus had twice tried to dissuade the suitors from killing Telemachus.
Amphinomus, son of Diomedes and the daughter of King Daunus of Apulia in Italy.
Amphinomus, brother of Anapias (named in latin: Pii Fratres, lit. 'the saint brothers'): they are legendary characters of the Greek Catania (Sicily, Italy), who saved their parents from an eruption of Etna, carrying them on their shoulders.
There was also a Greek geometer called Amphinomus. He is thought to have flourished in the fourth century BC, but is otherwise unknown. He is mentioned a few times by Proclus in his Commentary on the First Book of Euclid's Elements.