Mammoth Mammoth (often stylized as MAMMOTH MAMMOTH) are an Australian hard rock/stoner rock band that formed in 2007 in Melbourne. The band independently released their self-titled debut EP in June 2008 through their label, Golden Triangle, and followed this with a full-length album titled "Volume II: Mammoth" in August 2009.

In November 2012, their third album Volume III: Hell’s Likely was released, and after good sales and recognition in Europe They signed with Austrian/German label Napalm Records. Mammoth Mammoth's sound has been likened to "Motorhead doing mushrooms with Black Sabbath backstage at a Butt Hole Surfers concert".

The band are known for their raucous, live shows; Heavy Magazine Australia said, "their live reputation precedes them ... Mikey Tucker knows no boundaries and goes in hard every time; throwing himself off the stage and throughout the crowd." Mammoth Mammoth have been banned from performing at two music venues in Melbourne. According to an interview in the blog Riff media, Tucker fell through a glass window at The Tote Hotel after head-butting it to get the attention of concert attendees smoking outside. He then continued the show covered in blood.

The band describes their sound as "patented, good-time murder-fuzz" and "more awesome than God’s tits". They describe the effect of their music as "capable of killing unicorns". Mammoth Mammoth describe their songwriting style as "four guys in a boxing ring with no referee".