Odell Beckham's biological father -- Odell Beckham Sr. -- was arrested in Texas on Wednesday after officials in Texas say he was carrying weed and a gun ... TMZ Sports has learned.
Details surrounding the arrest are unclear -- but Odell was booked on 2 charges ... "unlawful carrying weapon" and "possession of marijuana under 2 ounces."
Beckham was taken to a nearby station where he was booked and posed for a mug shot. He has since been released on $5,000 bail.
Like his son, Odell Sr. played football at LSU -- and was the starting running back for the Tigers when Odell was born in 1992.