Artaxias I, of the Artaxiad dynasty, was a king (mepe) of Iberia (modern-day Georgia) from 90 to 78 BC. He is known exclusively from the medieval Georgian chronicles which gives his name as Arshak ().
A son of the king of Armenia, purportedly of Artavasdes I (r. c. 161âÂÂpost 123 BC), he is reported to have been installed following the noblesâ revolt against the Iberian king PâÂÂarnajom of the Pharnabazid dynasty. The rebels justified their choice by emphasizing that he was married to a Pharnabazid princess, probably a sister of PâÂÂarnajom. The account of his reign is remarkably short, stating only that his reign was without any major trouble and that he further fortified the city of Tsunda in Javakheti.