Greek life exists at Saint Leo, but only in a small way. There are a few small frats and sororities, but it's not nearly as big as it would be at a larger school. There are no official frat or sorority houses, though sometimes a couple of guys or girs in a Greek organization will get together and get an off-campus house or apartment. There is a Greek formal every year, but you do not necessarily have to be in a Greek organization in order to attend. The frats and sororities also sponsor parties occasionally.
Joining a frat or sorority at Saint Leo is much easier than at most other schools. There is very little hazing or demands. Most of the students that join do not play for a varsity sports team, and there is slight schism between the Greek students and the athletes. It's rare to see them at the same parties. Then again, are not really too many Greek parties to begin with. Whereas at other schools most students join Greek life for the social scene, the Saint Leo social scene certainly doesn't revolve around Greek life.