Bernard Bamford Calvert is an English musician who played bass guitar with The Hollies from 1966 until 1981.

The Hollies are an English rock and pop band formed in 1962. One of the leading British groups of the 1960s and into the mid-1970s, they are known for their distinctive three-part vocal harmony style. Allan Clarke and Graham Nash founded the band as a Merseybeat-type group in Manchester, although some of the band members came from towns further north, in east Lancashire. Nash left the group in 1968 to form Crosby, Stills & Nash, though he has reunited with the Hollies on occasion.