The 1985 Lamar Cardinals football team represented Lamar University in the 1985 NCAA Division I-AA football season as a member of the Southland Conference.
The Cardinals played their home games at Cardinal Stadium now named Provost Umphrey Stadium in Beaumont, Texas.
Lamar finished the 1985 season with a 3–8 overall record and a 0–6 conference record.
The season marked the final year with Ken Stephens as Lamar Cardinals head football coach.
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