- Born: 1570
- Died: 1600
- Titles: Nakatsukasa
- Other names: Matashichirô
- Distinction: Shimazu
- Japanese: 島津豊久 (Shimazu Toyohisa)
Toyohisa was the son of Shimazu Iehisa and held Sadowara castle in Hyûga when he came of age. He served under his uncle Yoshihiro in the Odawara Campaign (1590), in the Korean Invasions, and accompanied him to the Battle of Sekigahara. In the course of the retreat at the conclusion of the battle, Toyohisa was killed fending off enemy troops, though he is credited with allowing Yoshihiro to escape.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005