The Lone Star Alliance (LSA) is a lacrosse-only athletic conference affiliated with the Men's Collegiate Lacrosse Association (MCLA). The conference incorporates teams in Texas, Oklahoma, Louisiana, Arkansas, Kansas, Missouri, and Nebraska and is divided into three divisions, Division I, Division II, and Division III.
All of the LSA DI members are members of NCAA Division I. Currently the LSA DI league includes three Big 12 members, six SEC members, and one Atlantic Coast Conference member. Sixteen institutions currently make up the LSA Division II. Six institutions currently make up the LSA Division III. The league comprises members of various NCAA collegiate athletic conferences.
Note: From 1976 to 1990 the LSA was known as the SWLA (South Western Lacrosse Association)