Elvira Karin Öberg (born 26 February 1999) is a Swedish biathlete. She is the younger sister of Olympic champion Hanna Öberg. Elvira won three gold medals in the youth category at the 2018 Biathlon Junior World Championships in Otepää; in the 10 km individual, the 3 × 6 km relay and the 6 km sprint respectively. Öberg placed twelfth in the sprint in her Biathlon World Cup debut in Östersund, 1 December 2019.