Tadayuki (written: , , , , or ) is a masculine Japanese given name. Notable people with the name include:
*, Japanese baseball player
*, Japanese ''daimyō'' of the late Edo period
*, Japanese ''daimyō'' of the Edo period
*, Japanese ''daimyō'' who ruled the Yokosuka Domain, and lived from the mid to late Edo period
*, Japanese ''daimyō'' of the mid to late Edo period, who ruled the Obama Domain
*, Japanese photographer
*, Japanese boxer
*, Japanese photographer
*
Tadayuki Okada
Tadayuki 'Taddy' Okada (born February 13, 1967) is a Japanese former professional Grand Prix motorcycle road racer. He was runner-up in the 1994 250cc and in the 1997 500cc World Championship.
Early career
Okada won the 250cc All Japan Road Ra ...
(born 1967), Japanese motorcycle racer
*, Japanese figure skater and coach
{{given name
Japanese masculine given names