Avital Tamir (Hebrew: אביטל תמיר) is an Israeli musician best known as the former lead singer for metal band Betzefer and for his experimental pop trio On Shoulders of Giants.

Avital Tamir formed Betzefer along with guitarist Matan Cohen and drummer Roey Berman as a one-off band for a high school gig in 1998.

In 2003, after Nail Within vocalist Yishay Swearts left, guitarist Matan Cohen brought his Betzefer bandmates Avital Tamir (on vocals) and Rotem Inbar (on bass) to play with the band.

[2][3] In 2006, Avital took time off from touring with Betzefer to start a new project dubbed On Shoulders of Giants together with 7% Mind Usage guitarist Idan Epshtein and Jerusalem based singer Katie Danielson.

In early 2010, Tamir has started the alternative/garage rock band Black Swan with ex-Got No Shame lead guitarist Matan Ergas (AKA Nose).