Witwisit Hiranyawongkul (Thai: วิชญ์วิสิฐ หิรัญวงษ์กุล, RTGS: Witwisit Hiranyawongkun; born 20 July 1989), popularly nicknamed "Phcy" (Thai: พิช, (also written "Pitch" or "Phit"), is a Thai actor and singer. He is best known for his first leading role as Mew in the 2007 hit film The Love of Siam, which won several newcomer awards and propelled him to fame in Thailand and throughout Asia.
Witwisit Hiranyawongkul was born and raised in Chiang Mai, Thailand. He attended Montfort College in Chiang Mai. He was admitted to the Faculty of Journalism and Mass Communications, Thammasat University, Bangkok. He started his first year in 2007 and graduated in 2011.
Phcy entered the Thai entertainment business at the age of 17 while he was still in grade 12. He was discovered in his hometown by Chukiat Sakweerakul, writer and director of The Love of Siam. Chukiat is an alumnus of Montfort College and met Phcy because of their common music interests.