Lummie is of Scandinavian origin, meaning 'protector of the people'. It is a unisex given name, though more commonly used for males. The name has gained some popularity in recent years, particularly in Scandinavia and among individuals interested in Norse culture and history.
"Lummie appears to have had a notable period of popularity with seven births recorded in 1917, nearly twice the number as in other years like 1915 and 1928 which saw six births each."