Frank Bello

Frank Bello is an American musician who plays bass for the thrash metal band Anthrax. Bello had also performed as a touring member of the band Helmet from 2004 to 2005.

Bello was originally a roadie and guitar technician for Anthrax, but later replaced Dan Lilker soon after the release of the band's 1984 debut album Fistful of Metal, and has held this position ever since, excluding a brief departure in 2004, during which he was a member of Helmet – another New York City-based metal band. His stint in Helmet was brief, as Bello reunited with Anthrax the following year, and has remained in the band since.

Bello has referred to Paul McCartney, Steve Harris, Gene Simmons, Geezer Butler, Geddy Lee, Chris Squire, Tom Petersson and Jaco Pastorius as influences and inspirations to his bass playing. He mostly plays bass fingerstyle, but also uses a pick on certain songs. For example he can be seen using one in the videos for "Room for One More" and "Fueled". He also used a pick most of the time during his stint with Helmet.

In May 2021, Bello announced the forthcoming publication of his autobiography, Fathers, Brothers, and Sons: Surviving Anguish, Abandonment, and Anthrax. The book's co-writer is British author Joel McIver and it includes a foreword by Gene Simmons of Kiss.