Sigma Thêta Pi (ΣΘΠ, STPi), is an international student fraternity based in Quebec, Canada and France, established in 2003.

Within five years it established a Beta chapter in Montreal, Quebec Canada at the University of Montreal when one of the four founders exported Sigma Thêta Pi to that school.

The first is to enjoy the festivities of a student way of life; the second is to put together a social and professional network through the ΣΘΠ's brothers.

[3] The fraternity's motto is, Fraternitas, Animi Excelsitas ac Dignitas which means "brotherhood, pride, dignity".

The fraternity includes students from different scholastic curricula, different origins and nationalities, which can be associated with its international focus.