Sin Piedad 2006 (Spanish for "Without pity") was a professional wrestling Pay-Per-View (PPV) produced by Consejo Mundial de Lucha Libre (CMLL), which took place on December 15, 2006 in Arena México, Mexico City, Mexico. The main event was tag team Lucha de Apuesta, hair vs. hair match between the teams of Kenzo Suzuki and Marco Corleone going up against Universo 2000 and Shocker. The show also featured a Six-man "Lucha Libre rules" tag team match for the CMLL World Trios Championship where champions Los Guerreros del Infierno (Atlantis, Tarzan Boy and Último Guerrero defended against Los Perros del Mal (Damián 666, Halloween and Héctor Garza). The show featured three additional trios matches and a tag team match.