It comes from the word "blessed"-- Baruch. Many names today come from old Hebrew, Latin, or Greek names.
Barry Kent's birth name is Barry Sautereau.
Barry LeBrock's birth name is Barry Hochberg.
if you mean the name of "Manilow" like in Barry Manilow, yes, then it is Jewish.
Barry Sadler's birth name is Barry Allen Sadler.
Barry Sigismondi's birth name is Philip Barry Sigismondi.
Barry Sullivan's birth name is Sullivan, Patrick Barry.
Barry Tubb's birth name is Barry York Tubb.
Barry Unsworth's birth name is Barry Forster Unsworth.
Barry Townsley's birth name is Barry Stephen Townsley.
Barry Redden's birth name is Barry Dwayne Redden.
Barry Regan's birth name is Barry Christopher Regan.
Barry Rick's birth name is Barry George Richter.