Udārākṣa (Udaraksha) is a follower-warrior of Skanda-Kārtikeya (Kartikeya) . He helped Kārtikeya at the time of killing Tārakāsua (Tarakasura).

Mahābhārata (Kinjawadekar)(9.45.63)
Mahābhārata Vols. 1-43 (Siddhāntabāgīśa)(9.42.52, see footnote, vol. 29, p. 476)