The 1965 Lamar Tech Cardinals football team represented Lamar State College of Technology—now known as Lamar University—as a member of the Southland Conference during the 1965 NCAA College Division football season.
Led by third-year head coach Vernon Glass, the Cardinals compiled an overall record of 6–4 with a mark of 3–1 in conference play, winning the Southland title.
Lamar Tech played home games at Cardinal Stadium in Beaumont, Texas.
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