Justus is a Latin name that means "just" or "upright"; it appears in the New Testament as the surname of Joseph Barsabbas and was borne by several early saints. The name has a long history among German families and has an upright, old-fashioned ring that appeals to American parents who like Titus and Augustus. Justus ranked number 694 in 2000 and number 647 in 2002, but has fallen steadily and stands at number 1952 in 2025.