Picnic – A Breath of Fresh Air is a sampler issued by the Harvest Records label, originally released in 1970 and notable for including the previously unreleased Pink Floyd song, "Embryo".

The similarly-entitled A Breath of Fresh Air – A Harvest Records Anthology 1969–1974[1] released on 14 May 2007 borrowed most of the original title, but had only three tracks in common with its precursor (Pink Floyd's "Embryo", Panama Limited's "Round and Round", and Quatermass' "Black Sheep of the Family").

Although most tracks featured were of similar vintage, the album was a retrospective compilation, rather than a promotional sampler.

The inclusion of "Embryo", without the approval of Pink Floyd, and which the band considered unfinished, resulted in the album's prompt withdrawal.

The interior of the sleeve displays the covers of most of the albums from which the tracks are taken against the background of an incoming sea tide.