Tadaaki (written: , , , , or ) is a masculine Japanese given name. Notable people with the name include:
*, Japanese ''daimyō''
*, Japanese sumo wrestler
*, Japanese table tennis player
*, Japanese footballer
*, Japanese samurai
*, Japanese samurai
*, Japanese footballer
*, Japanese samurai and ''daimyō''
*, Japanese writer
*, Japanese ''daimyō''
*, Japanese ''daimyō''
*, Japanese ''daimyō''
*, Japanese conductor
{{given name
Japanese masculine given names
Masculine given names