John "Sib" Hashian is a drummer who was a member of the rock band Boston during their first and most successful lineup. John Hashian currently lives in Lynnfield, Massachusetts.
Sib Hashian joined Boston in 1975, replacing original drummer Jim Masdea. Hashian's drumming is featured on Boston's self titled debut album, as well as on the follow-up Don't Look Back. Hashian was involved in the early sessions for Boston's Third Stage album, but was later replaced when Masdea returned.
After leaving Boston, Sib Hashian sued Boston band leader Tom Scholz for back royalties and the two later settled out of court.
Sib Hashian was also the drummer for fellow Boston member Barry Goudreau's self-titled solo album which was released in 1980. The album achieved moderate success with the rock radio hit Dreams.
Sib Hashian occasionally plays gigs in the Boston area with former bandmates, including Goudreau, Fran Sheehan and Brad Delp, prior to the singer's suicide in 2007.
In 2006 John "Sib" Hashian recorded with Ernie and the Automatics, a band that features Goudreau on guitar.