Tigranes I (Ancient Greek: Τιγράνης) was an Artaxiad king of Armenia at the end of the 2nd and the beginning of the 1st century BC.

[2][3] Other historians, such as Hakob Manandian, David Marshall Lang and Rouben Paul Adalian consider him a real figure but differ or are uncertain on the exact dates of his reign.

[5][12] The name Tigránēs (Τιγράνης) is the Greek form of Old Iranian Tigrāna (Tigran Տիգրան in Armenian).

[14][15] The Armenian historian Movses Khorenatsi mentions a Tiran, "son of Artaxias and brother of Artavasdes", who has been identified as Tigranes I.

[5][12] Hakob Manandian, citing Strabo, mentions that Tigranes I put up a strong resistance against the Parthians and successfully defended Armenia and faced no conflict afterwards.

[24][25] He also stripped the Vahevunis of their priesthood after finding out that they had moved the gold plated statue of Vahagn located in Armavir to their domain in Ashtishat after the death of Artaxias I.

Tigranes also had to deal with the inheritance issues of his and other families, as his relatives living in the region of Hashteank complained that there was not enough land to divide among themselves.

[18] After his death, Tigranes II, who was given as hostage to the Parthians by Artavasdes I, returned from his captivity in Parthia and assumed the throne.

[4][20][1][30] Barring the conflict with Parthians, the reign of Tigranes I has been described as generally peaceful and devoid of major external events.

The reverses of these coins either depict an elephant, horse, lion, or the goddess Nike holding a wreath or palm.

[32] Some numismatists such as Bedoukian and Nupertlian have argued that the coins depicting a crude bust of a beardless king facing left is attributed to Tigranes I.