Laila Boonyasak (Thai: ???? ??????????, RTGS: Laila Bunyasak), or formerly Chermarn Boonyasak (Thai: ???????? ??????????, RTGS: Choeman Bunyasak), nickname Ploy (Thai: ????, RTGS: Phloi), is a Thai film and television actress and model.
She is well known for her role as June/Tang in the movie The Love of Siam.
Her other film roles have included the title ghost character in director Yuthlert Sippapak's horror-comedies Buppah Rahtree and Buppah Rahtree Phase 2: Rahtree Returns.
She was also featured in Pen-Ek Ratanaruang's Last Life in the Universe, in which she portrayed the younger sister of the character played by her real-life older sister, Daran Boonyasak.