This is a list of marquisates in Portugal.
- Marquis of Basto
- Marquis of Belas
- Marquis of Bemposta
- Marquis of Bemposta-Subserra
- Marquis of Borba
- Marquis of Jácome Correia
- Marquis of Sá da Bandeira
- Marquis of Sabugosa
- Marquis of Saldanha
- Marquis of Sande
- Marquis of Santa Cruz
- Marquis of Santa Iria
- Marquis of Santarém
- Marquis of São Lourenço
- Marquis of São Miguel
- Marquis of São Paio
- Marquis of Sesimbra
- Marquis of Soydos
- Marquis of Soure
- Marquis of Sousa Holstein
- Marquis of Soveral