The 13th-ranked Bayou Bengals used a 43-32 edge in rebounds and solid outside shooting to avoid the upset loss. LSU hit 8-19 three-pointers while Auburn made 5-18 threes.
Rasheem Barrett bounced back from an off-night in his last outing at Kentucky to lead Jeff Lebo's team with 18 points. He hit 6-11 three shots, including 2-4 threes, and hit all four of his foul shots.
Auburn's improved foul shooting helped the Tigers almost pull off the upset. They made 14-16 free throws while LSU hit 11-19.
LSU's Terry Martin led all scorers with 23 points and helped the home team overcome a nine-point first half deficit with his three-point shooting. Martin hit 5-9 treys.
Tasmin Mitchell scored 12 points for the Bayou Bengals and Glen "Big Baby" Davis chipped in with 11 points and 11 rebounds.
Auburn hit 22-56 field goals for 39.3 percent while LSU made 23-56 shots for 41.1 percent.
Auburn finished the game with 13 turnovers, five fewer than the home team.
Part of AU's problems with rebounding could be because of the ineffectiveness of leading scorer Vot Barber. Playing with an injured shoulder, the sophomore forward was only in for 10 minutes. He didn't score a point or grab a rebound.
After trailing 32-28, LSU took a five-point lead with 6:24 to play, but couldn't shake the visitors down the stretch. Auburn cut the gap to 61-58 with 1:26 to play on a basketball by Barrett, who then cut the lead to one with a three-pointer from the corner with 25 seconds remaining.
LSU's Martin hit one of two three throws with 14 seconds left to put LSU ahead 65-63. After his miss on the second shot, Auburn pushed the ball quickly up court and Lewis got off an open three-point look from the wing. The ball went in the basket and bounced back. LSU got the rebound to hold on for the victory that improves its record to 1-1 in the SEC and 12-4 overall.
"It was frustrating for our kids, but we did some good things out there today on the road against a very good basketball team," Lebo said. "Now if we can get some consistency. We were pretty hard on them after the Kentucky game. We did not play very well up there. Of course, we missed a lot of shots up there."
Auburn, which fell to 11-7 overall and 1-2 in the SEC, returns to action at home Wednesday night as the Tennessee Volunteers visit Beard-Eaves Memorial Coliseum.