Sofia Lavreshina (born 14 June 2003) is a Portuguese sprinter and hurdler. She is the indoors national record holder over 400 metres, and won the 400 m at the Portuguese Championships in 2025 and the 2026 Portuguese Indoor Championships.
From Pombal in the Leiria District of Portugal, she competes as a member of Sporting CP. Competing in California for Long Beach State University in the United States, Lavreshina broke a 36-year-old school record competing indoors in the 400 metres in January 2024, as she ran a time of 54.71 seconds. Lavreshina competed for Portugal in the women's 4 x 400 metres relay at the 2024 World Relays, in Nassau, The Bahamas, and at the 2024 European Athletics Championships in Rome.
In April 2025, she broke the Sun Beach State school record for the 400 metres hurdles, running 56.64 seconds in Long Beach. In August 2025, she won the 400 meters title at the Portuguese Championships, also placing third in the 400 metres hurdles behind Fatoumata Diallo at the championships.
She ran an indoors personal best and Portuguese indoor national record for 400 metres of 52.19 seconds in Glasgow in January 2026. The following month, she lowered that mark to 52.07 seconds on the World Athletics Indoor Tour in Madrid. The following month, Lavreshina set a championship record at the Portuguese Indoor Championships winning the 400 metres race in 52.33 seconds in Braga, breaking the record of Vera Barbosa which had stood since 2020.
In March 2026, she was selected for the 2026 World Athletics Indoor Championships in Poland. She was a semi-finalist in the 400 m at the championships. During the qualifying rounds, Lavreshina improved the national record with a time of 51.87 seconds.