Olga Józefowicz (24 June 1904 – 31 January 1979), known professionally as Olga Olgina, was a Polish coloratura soprano, teacher and pianist. She made her debut in the title role of Verdi's La traviata at the Vilnius Opera in 1922 at age 18 and retired in 1977. She taught at the Łódź Conservatory, becoming dean of the institution. Teresa Żylis-Gara was one of her students.