Kil Hae-yeon (길해연) is a South Korean actress. She was born on April 11, 1964 in South Korea. She is 162 cm tall and weighs 47 kg. She is represented by Just Entertainment. She began her acting career on stage in 1986. She is best known as Kim Mi-yeon in Something in the Rain (2018).

Kil Hae-yeon played Kim Mi-yeon in Something in the Rain (2018), played Shin Hyung-sun in One Spring Night (2019) and played Oh Ok-sun in Head Over Heels (2025). Something in the Rain is a 2018 television series that mixes romance and drama. One Spring Night is a 2019 television series that mixes romance and drama. Head Over Heels is a 2025 television series that mixes romance, fantasy and drama. She made her film debut in 2003 and her television drama debut in 2012. She is known for playing mothers and strong supporting roles. In the 2018 romance drama Something in the Rain, she played Kim Mi-yeon. In the 2019 romance drama One Spring Night, she played Shin Hyung-sun. In the 2025 romance drama Head Over Heels, she played Oh Ok-sun.