The Stephen F. Austin Lumberjacks basketball team is the men's basketball team that represents Stephen F. Austin State University (popularly abbreviated as SFA) in Nacogdoches, Texas, United States.

They won 29 games in a row including the conference semi-final and finals and the second round of the NCAA Tournament.

SFA repeated the same feat in their 2015–2016 season by going 18–0 in conference and reaching the second round of the NCAA once again, but lost by Rex Pflueger's putback which gave Notre Dame a 76-75 win over the Lumberjacks.

On May 20, 2020, following the discovery of an administrative error in certifying eligibility for student-athletes, Stephen F. Austin reached an agreement with the NCAA to vacate hundreds of wins across multiple sports from 2013 to 2019, including all 117 men's basketball wins from the 2014–15 to 2018–19 seasons.

SFA's affiliation with the WAC would only last three seasons, as it announced on May 29, 2024 that it would return to the SLC effective with the 2024–25 school year.