Apasiri Nitibhon (Thai: อาภาศิริ นิติพน, nickname "Oom") is a Thai actress. Among her starring roles is as Angsumalin in Sunset at Chaophraya in 1996. She has also been featured in Bullet Wives and The Victim.
Apasiri trained as a likay dancer in her youth. For the 2006 film, The Victim, she portrayed a beauty queen who performs a likay dance. For this role, she had to receive a refresher course in Thai classical dance.[1]
She is younger sister of Umarin Nitibhon, a Thai singer and actor.