What does Sixto mean?
Sixto /six-to/ [2 sylls.] as a boys' name is of Latin derivation, and Sixto means "sixth". Sixto is a variant form of Sextus (Latin) with the prefix Si-.
How popular is Sixto?
Sixto is a rare first name for men but a very popular surname for both adults and children (#61376 out of 150436, Top 41%). (2000 U.S. Census)
Shown below is the baby name popularity of Sixto for boys. Sixto was first listed in 1940-1949 and reached its peak rank of #946 in the U.S. then, but is not ranked at the moment. (2014 Birth Statistics)