The Stephen F. Austin Lumberjacks football program is the intercollegiate American football team for Stephen F. Austin State University (SFA) located in the U.S. state of Texas. The team competes in the NCAA Division I Football Championship Subdivision (FCS) as members of the United Athletic Conference. The UAC, newly formed for the 2023 season, is a merger of the football leagues of SFA's primary home of the Western Athletic Conference (WAC) and the ASUN Conference. It replaces an alliance between the two conferences that operated in the 2021 and 2022 seasons.

Stephen F. Austin State University is a public university in Nacogdoches, Texas. It was founded as a teachers' college in 1923 and subsequently renamed after one of Texas's founding fathers, Stephen F. Austin. Its campus resides on part of the homestead of Thomas Jefferson Rusk. On May 11, 2023, the university joined the University of Texas System; it was previously one of two public universities in the state not affiliated with one of Texas's seven university systems.