Park Si-eun (; born January 6, 1980), birth name Park Eun-young, is a South Korean actress. She played leading roles in the television dramas It Was Love (2012) and Hold My Hand (2013).
In December 2014, Park announced her engagement to her Pure Pumpkin Flower co-star Jin Tae-hyun. The couple married in July 2015.
In 2019, Park and her husband announced that they had adopted a teenage girl whom they had met at an orphanage four years prior. On February 21, 2022, she announced that she was pregnant with her first child, after previously experiencing two miscarriages. However, on August 20, Jin Tae-hyun announced that Park has suffered an miscarriage 20 days before birth.