Masaji is a unisex given name of Japanese origin. It is composed of two kanji characters: 正 ('masu', meaning 'correct' or 'right') and治 ('ji', meaning 'rule' or 'govern'). Together, these characters form the name Masaji, which can be translated to mean "correct rule" or "proper governance". The name is often used for both males and females in Japan.
The name Masaji experienced varied popularity over the years, with peaks in 1913 and 1916, and a significant drop after 1925.