Park Si-yeon (born Park Mi-seon on March 29, 1979) is a South Korean actress. She joined the Miss Korea pageant in 2000, and using that as a springboard to an acting career, she made her acting debut in China in 2004, appearing in minor roles in several CCTV dramas. In 2005 Park was cast in her first starring role in the Korean drama My Girl, though at the time she was more known for dating actor-singer Eric Mun.