Arbinas, also Erbinas, Erbbina, was a Lycian Dynast who ruled circa 430/20-400 BCE.

He is most famous for his tomb, the Nereid Monument, now on display in the British Museum.

[1] Coinage seems to indicate that he ruled in the western part of Lycia, around Telmessos, while his tomb was established in Xanthos.

[5] Using the design of a Greek Temple for the building of a tomb was unheard of in mainland Greece.

According to Melanie Michailidis, though bearing a "Greek appearance", the Nereid Monument, the Harpy Tomb and the Tomb of Payava were built according main Zoroastrian criteria "by being composed of thick stone, raised on plinths off the ground, and having single windowless chambers".