Tadazane
Tadazane may refer to:
- Ōkubo Tadazane, the 7th daimyō of Odawara Domain in Sagami Province in mid-Edo period Japan
- Fujiwara no Tadazane, Japanese noble and the grandson of Fujiwara no Morozane
- Ogasawara Tadazane, Japanese daimyō of the early Edo Period, the son of Ogasawara Hidemasa