The Rockin' 1000 is a group of rock musicians primarily from Italy. Over a thousand musicians play and sing simultaneously at their concerts. The group was originally assembled in July 2015 as a way to ask the Foo Fighters to visit the town of Cesena, Italy.

Originally organized in a crowdfunding effort by Fabio Zaffagnini, the Rockin' 1000 have made several subsequent appearances, and have been dubbed the "biggest band in the world". Their initial performance in 2015 was made under the direction of Marco Sabiu.Large-scale groups under the name Rockin' 1000 have been reassembled for some subsequent performances. On 7 July 2019, Rockin' 1000 played 18 songs in the Commerzbank Arena in Frankfurt, Germany. With 1,002 musicians playing in front of an audience of 15,000 spectators, the project achieved the world record for the largest performing rock band. Hundreds of guitarists, bass players, drummers, keyboardists, and singers—as well as wind sections, and string sections—joined together, playing rock classics by Deep Purple, Led Zeppelin, AC/DC, Jimi Hendrix, the Rolling Stones, Oasis, Depeche Mode and others.