What are the most popular baby boy and baby girl names in America? Search common baby names by year. Gender:
Origin of the name Justin: From the Latin JustÄ«nus, which is derived from justus (lawful, right, just). From A World of Baby Names by Teresa Norman.
Jost is also a derivative of the English and French name Justin. See also the related form, the German Jodok. Jost is not commonly used as a baby boy name. It is not in the top 1000 names.