Bawa Thanthayar (Pali: Bhava Samsara) (Burmese: ဘဝသံသရာ; lit.

'Cycle of Life') is a 1956 Burmese black-and-white drama film, directed by Thukha starring Zeya, May Thit, Thukha and Aye Kyu.

It is one of the most famous films in the history of Burmese cinema and was only released at the end of the year, but was the highest grossing film of 1956.

On December 14, 1956, it broke the record for the highest grossing sound film in Rangoon cinemas.

The song "Life Cycle", written and sung by Thukha and accompanied by U Ba Thein from Mandalay Film, is still popular today.