Darayan I (also spelled Darew I, Darev I and Darius I; Aramaic: 𐡃‬𐡀𐡓𐡉‬𐡅‬ d’ryw) was the first king of Persis, most likely invested with kingship of the region by his overlord, the Parthian monarch Phraates II (r. 132–127 BC) sometime after 132 BC.

[2][a] Darayan I, unlike his predecessors—the fratarakas—used the title of shah ("king"), and laid foundations to a new dynasty, which may be labelled the Darayanids.

[5] On the obverse, the king is wearing a soft cap (bashlyk) with a crescent.

[4] On the reverse, the king is facing a fire temple with the Zoroastrian supreme deity Ahura Mazda above, and holding a scepter, and on the other side of the temple an eagle mounted on a pedestal.

The reverse has an inscription in the Aramaic script: 𐡃‬𐡀𐡓𐡉‬𐡅‬ 𐡌𐡋‬𐡊‬ d’ryw mlk’ ("Darius the King").