What does Rastus mean?
Rastus is an unusual given name for males and an unusual last name too for both adults and children. (2000 U.S. Census)
Below is a graphed analysis of the usage of Rastus and associated names. The only popular alternative form of Rastus (#unlisted) appearing in the Top 1000 is Erastus. Adoption of this boy name was at its peak during the years 1880-1889 and is now much less. (2014 Birth Statistics)
A recommended similar baby name is Rasmus. Like Rastus, this name is not commonly used.