Theroux is primarily known as a French surname that has occasionally crossed over into use as a masculine given name. The surname originated from a medieval French personal name, likely derived from the Germanic element "theud" meaning "people" or "race." As a first name, Theroux remains extremely rare, gaining limited recognition primarily through association with famous bearers of the surname, such as travel writer Paul Theroux and actor Justin Theroux. The name has a sophisticated, literary quality with its French pronunciation and unique 'x' ending. While virtually absent from popularity charts, it appeals to parents seeking a distinctive, cosmopolitan name with European flair. The name's rarity ensures individuality while its surname origins give it a distinguished, intellectual character.