Marietta Subong O'Brian (born August 27, 1970), known professionally as Pokwang, is a Filipina comedian, actress, television host and singer.

She started in a reality show on ABS-CBN and subsequently appeared in dramas and sitcoms of the network. She also received the Best Comedy Actress award from the Philippine Movie Press Club for her portrayal in the sitcom Aalog-Alog and the Best Female Comedian award from People's Choice Awards. She became a host of the variety shows Wowowee, Pilipinas Win na Win, and Happy Yipee Yehey.