The Montana State Billings Yellowjackets are the athletic teams that represent Montana State University Billings, located in Billings, Montana, in intercollegiate sports as a member of the NCAA Division II ranks, primarily competing in the Great Northwest Athletic Conference (GNAC) since the 2007–08 academic year. The Yellowjackets previously competed in the D-II Heartland Conference from 2005–06 to 2006–07; in the D-II Pacific West Conference from 1982–83 to 2004–05; as an NCAA D-II Independent from 1980–81 to 1981–82; and in the Frontier Conference of the National Association of Intercollegiate Athletics (NAIA) from 1933–34 to 1979–80.