UFC 43: Meltdown

UFC 43: Meltdown was a mixed martial arts event held by the Ultimate Fighting Championship on June 6, 2003, at the Thomas and Mack Center in Las Vegas, Nevada.

The event was broadcast live on pay-per-view in the United States, and later released on DVD.

Headlining the card was the Interim Light Heavyweight Championship match between Randy Couture and Chuck Liddell.