Sithu Aung (Burmese: စည်သူအောင်; also spelled Si Thu Aung; born 16 October 1996) is a Burmese professional footballer who plays as midfielder for Myanmar national football team and Yadanarbon. He has played much of his career as a left-back, he has also been used as awinger.Aged 13, Sithu Aung joined the youth team of Yangon United, for whom he made his professional debut in 2012 at the age of 16. He got MNL champion 2 times and played AFC Cup 3 time in 2012, 2013 and 2014. He spent three season at Yangon United club, before moving to Yadanarbon FC for undisclosed fee in the 2014 MNL transfer window and making him the third Yangon United player to join the club in 18 months.