What does Lothair mean?
Lothair \l(o)-thair\ as a boys' name. The name Lothair means "famous warrior; soldier of the people". Lothair is a derivative of Lothar (Old German). Lothair is also a derivative of Luther (Old German).
Lothair is an unusual given name for men. Lothair is an equivalently unusual last name too for both adults and children. (2000 U.S. Census)
Below is a graphed analysis of the popularity of the boy name Lothair and corresponding names. Luther is the only popular alternative form of Lothair (#unlisted). This boy name was at the height of its popularity during the years 1880-1889 and has become significantly less popular since, with the form Luther becoming less fashionable. (Top 1000 Baby Names Statistics, 2014)