Karolina Sofia Bock née Richter (August 28, 1792, Stockholm – 22 March 1872) was a Swedish stage actress.

She was a student of Sofia Lovisa Gråå, and belonged to those female stage artists of her generation referred to as the "Grå Girls".

Her method was that of the French technique which had been introduced at the school by Anne Marie Milan Desguillons and kept at the time of her own tenure as student there under Sofia Lovisa Gråå.

Furthermore, though Karolina Bock was described as an excellent teacher, she was also described as one who forced a more strict discipline upon her students, and in 1856, she was deposed as principal after protests by the acting class.

She was the mother of Bertha Tammelin, who became an actor, singer, composer, musician and a teacher at the Royal Dramatic Training Academy.