Luis Alberto Lazarte (born March 4, 1971, in Mar del Plata, Buenos Aires, Argentina) is an Argentinean former professional boxer who has held the IBF junior flyweight title from May 2010 until April 2011.

He won the IBF junior flyweight title from Colombian Carlos Támara on May 29, 2010.

Lazarte also challenged for the world title twice at minimumweight (against Kermin Guardia and Daniel Reyes), twice more at light flyweight (against Édgar Sosa and John Riel Casimero) and twice at flyweight (against Pongsaklek Wonjongkam and Omar Narváez).

Lazarte's competitive boxing career effectively ended after he was given a rare lifetime ban by the International Boxing Federation following a February 10, 2012 match against Johnriel Casimero in which Lazarte, surrounded by supporters and fighting in his home country, intentionally leveled low blows, headbutts and illegal blows to the back of the head against Casimero, as well as biting him at least twice, threatened the referee's life after being warned for his conduct, then (after being ruled the loser) deliberately sparked a riot in the arena that caused numerous additional injuries to police, spectators and Casimero's team.

[2] His role in the riot resulted in a rare lifetime ban being given to Lazarte by the IBF.