Mats de Tonsberg or Mathias de Tonsberg (1638–1705) was a Norwegian civil servant and timber trader.
- Occupation
- civil servant, businessperson
- Position held
- County Governor of Buskerud, County Governor of Aust-Agder, Diocesan Governor of Kristiansand, Q96707196
- Citizenship
- Norway
- Born
- 1638
- Died
- 1705