Lamar Odom has been arrested in Las Vegas … TMZ has learned.

The former NBA star was arrested and booked for driving under the influence early Saturday morning.

He was also slapped with two traffic violations — driving more than 41+ miles per hour over the limit and improper lane change/failure to maintain lane.

Odom has a documented history of drug and alcohol addiction. He was previously arrested for DUI in 2013.

In 2015, Odom nearly died of an overdose … and his wife, Khloé Kardashian, rushed to his side to nurse him back to health. Their relationship ended not long after Odom relapsed in 2016.

Odom — who played for four teams across a 14-year NBA career — committed himself to sobriety in recent years … and even offered help to others struggling with addiction, like Bam Margera, via several rehabilitation centers he owns.

We broke down all of Odom’s struggles in our documentary “TMZ Presents: Lamar Odom: Sex, Drugs, & Kardashians” … now available to stream on YouTube.