KRI Alamang (644) is a Clurit-class fast attack craft of the Indonesian Navy.

[3] Alamang was commissioned by Minister of Defense Purnomo Yusgiantoro in Batam on 20 December 2013, alongside two patrol boats also built by Palindo.

[4][5] She is part of the Indonesian Navy's Western Fleet Command (Koarmabar).

[1] In the Western Fleet Command, she patrolled the waters around Batam and the Singapore Strait, capturing vessels without documentation or smugglers.

[6][7] She also patrols the waters around the Natuna Islands, capturing one Vietnamese fishing vessel there in 2017.