Laila Boonyasak[1][2] (Thai: ไลลา บุญยศักดิ์, RTGS: Laila Bunyasak), better known by her birth name Chermarn Boonyasak (Thai: เฌอมาลย์ บุญยศักดิ์, RTGS: Choeman Bunyasak), nickname Ploy (Thai: พลอย, RTGS: Phloi), is a Thai film and television actress[3] and model.

She is well known for her role as June/Tang in the film The Love of Siam, which earned her a Suphannahong National Film Award for Best Supporting Actress and a Bangkok Critics Assembly Award for the same category.

She was also featured in Pen-Ek Ratanaruang's Last Life in the Universe,[4][7] in which she portrayed the younger sister of the character played by her real-life older sister, Daran Boonyasak.

[8] In 2014, Chermarn has joined forces with the UN Refugee Agency and celebrities around the world to help spread the message of World Refugee Day.

[9] She's also a mentor on the modelling-themed reality series The Face Thailand season 1 and The Face Thai and season 4 All Stars, aired on Channel 3.