Karin Thomasdotter (Swedish) or Finnish: Karin Thomaksentytär (1610–1697) was a Swedish/Finnish Vogt and länsman. Her position as an official was near to unique for a woman of her time, particularly as she was not of noble birth.
She was the daughter, granddaughter, mother, grandmother and wife of a vogt, and took over this position herself after the death of her spouse. She functioned as vogt in Pargas for forty years, which makes her one of the longest serving vogt in contemporary Finland. She was also one of only two females to have the position in contemporary Finland. She is described as a person with great authority.
- Suomen kansallisbiografia (National Biography of Finland)
- Ohlander, Ann-Sofie. Tusen svenska kvinnoår, 2008. Upplaga 3. uppl.