Hajime Miki (三木 肇, Miki Hajime, born April 25, 1977) is a Japanese former professional baseball infielder who currently serves as the manager for the Tohoku Rakuten Golden Eagles of Nippon Professional Baseball (NPB).

In 2019, Miki led the Tohoku Rakuten Golden Eagles' farm team to the Eastern League title for the first time in its 15–year history.

He was then promoted to manager of the Eagles for the 2020 season with an emphasis on rebuilding the team.

[1] After one season it was announced that Miki would again return to manage the farm team.

This biographical article relating to a Japanese baseball infielder is a stub.