Miyaji (surname)

Miyaji is a Japanese surname that may refer to
 * Atsuko Miyaji, Japanese cryptographer and number theorist
 * Katsuhiko Miyaji (born 1971), Japanese baseball outfielder
 * Kazuaki Miyaji (born 1940), Japanese politician
 * Mao Miyaji (born 1984), Japanese actress
 * Masayuki Miyaji (born 1976), Japanese anime director and supervisor
 * Takeshi Miyaji (1965–2011), Japanese video game developer
 * Toshio Miyaji, Japanese football player
 * Yoshihisa Miyaji (born 1973), Japanese weightlifter
 * Yōsuke Miyaji (born 1987), Japanese football player