Johnny Walker

MMA fighter

Walker Johnny Silva Barra de Souza, known as Johnny Walker, is a Brazilian professional mixed martial artist. He currently competes in the Light Heavyweight division of the Ultimate Fighting Championship (UFC). A professional since 2013, Walker gained entrance into the UFC by competing on Dana White's Contender Series and also previously competed for Jungle Fight in his native Brazil. As of June 2, 2026, he is #13 in the UFC light heavyweight rankings.