Lee Seon-mi (born 1 August 2000) is a South Korean weightlifter.

She represented South Korea at the 2020 Summer Olympics in Tokyo, Japan.

[2][3] At the 2018 Junior World Weightlifting Championships held in Tashkent, Uzbekistan, she won the gold medal in the women's 90 kg event.

[4] In 2019, at the Junior World Weightlifting Championships held in Suva, Fiji, she won the gold medal in the women's +87 kg event.

[5] In April 2021, she competed at the 2020 Asian Weightlifting Championships held in Tashkent, Uzbekistan.