Arucha Tosawat (, also spelled Tohssawat; born Rattanaballang Tosawat 22 September 1979) is a Thai film and television actor and model.
He graduated from Bangkok University with a Bachelor of Arts degree in Advertising. He is most known for his lead role as Mehk (Cloud in English) in Bangkok Love Story (2007), in Fireball as Tun (2009) and in The Meat Grinder (2009). He has also played a number of TV series and sitcoms on Thai television stations ITV and Channel 7. Arucha likes to post photos with kids on his personal Instagram.
In 2008, he was nominated for Best Actor for his role in Bangkok Love Story at the Suphannahong National Film Awards