Mitsi is a name of Greek origin, meaning 'beeswax'. It's often used as a female given name, though it can also be found as a surname. The name Mitsi is composed of two elements: 'melt-', which comes from the Greek word 'meli' meaning honey, and '-si', which is likely a diminutive suffix. Thus, Mitsi could be interpreted as a derivative of something sweet or pleasant. Spelling variations include Mitsy, Mitzie, and Mitzie.
Mitsi was quite popular in 1977 with exactly seven babies being named Mitsi that year.