| Mathias Salas | |
| Office4: | Minister of Finance |
| President4: | Ishmael Toroama |
| Term Start4: | 2 October 2020 |
| Term End4: | 19 September 2023 |
| Office8: | Minister of Finance |
| President8: | Joseph Kabui |
| Term Start8: | 23 June 2005 |
| Term End8: | 2010 |
| Office9: | Minister of Minerals, Gas and Petroleum Exploration |
| Term Start9: | 23 June 2005 |
| Term End9: | 2010 |
| Office12: | Member of the Bougainville House of Representatives |
| Constituency12: | North Nasioi |
| Termstart12: | 2020 |
| Predecessor12: | Nicholas Daku |
| Termstart13: | 2005 |
| Termend13: | 2010 |
| Predecessor13: | none (constituency created) |
| Successor13: | Nicholas Daku |
| Nationality: | Papua New Guinean |
| Party: | Bougainville People's Congress |
Mathias Roman Salas is a Bougainvillean politician and former Cabinet minister. Salas is a former banker.[1]
In the 2005 Bougainvillean general election Salas was elected to the first Bougainville parliament as a member of the Bougainville People's Congress. On 23 June 2005 he was appointed Minister of Finance and Minerals, Gas and Petroleum Exploration in the cabinet of President Joseph Kabui.[2] In 2008 he served as acting vice-President.[3] He subsequently lost his seat in the 2010 election.
Salas was re-elected to parliament in the 2020 Bougainvillean general election.[4] On 2 October 2020 he was appointed Minister of Finance and Treasury in the cabinet of Ishmael Toroama.[5] Salas delivered three annual budgets for the Autonomous Bougainville Government, focusing on regional development. In 2022, Salas questioned the National Government of Papua New Guinea over a discrepancy between the amount of money budgeted for Bougainville and the amount that had been appropriated.[6] In September 2023, Salas was removed from this post in a Cabinet reshuffle, and replaced by Robin Wilson, the member from Terra constituency.[7]