Meaning and name origin
Lothair \l(o)-thair\ as a boy's name is of Old German origin, and the meaning of Lothair is "famous warrior; soldier of the people". Lothair is a variant of Lothar (Old German): the character Lothario in an early 18th-century English play gave this name connotations for awhile of a libertine or a careless seducer of women. Also a variant of Luther (Old German): usually used as homage to Martin Luther, the German religious reformer, or to Martin Luther king, Jr, the civil rights activist.
Lothair is not a popular first name for males and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the boy name Lothair and its variant forms. The only popular variation form ranked in the Top 1000/100 is Luther. (2014 statistics).
A suggested similar baby name is Lothario. Like Lothair, this name is not commonly used.