Sadaaki
# Sadaaki

Sadaaki (written: 貞明, 貞暁, 貞顕, 定敬 or 禎章) is a masculine Japanese given name. Notable people with the name include:

* Sadaaki Akamatsu (赤松 貞明, 1910–1980), Japanese World War II flying ace
* Hōjō Sadaaki (北条 貞顕, 1278–1333), Japanese regent
* Sadaaki Konishi (1916–1949), Imperial Japanese Army officer
* Matsudaira Sadaaki (松平 定敬, 1847–1908), Japanese daimyō
* Sadaaki Senda (千田 貞暁, 1836–1908), Japanese politician
* Sadaaki Yoshimura (吉村 禎章, born 1963), Japanese baseball player
