Penguin is the seventh album by British rock band Fleetwood Mac, released in 1973. It was the first Fleetwood Mac album to feature Bob Weston and the only one to feature Dave Walker. The penguin is the band mascot favoured by John McVie.
In September 1972, the band added guitarist Bob Weston and vocalist Dave Walker, formerly of Savoy Brown. Bob Weston was well known for playing slide guitar and had known the band from his touring period with Long John Baldry. Fleetwood Mac also hired Savoy Brown's road manager, John Courage. Mick, John, Christine, Welch, Weston, and Walker recorded Penguin, which was released in March of 1973. The subsequent tour seemed to go well, and Penguin was the highest charting Fleetwood Mac album in the US at the time, clawing its way into the Top 50. However, during the recording of their next album, Mystery to Me, it was mutually agreed upon that Walker's vocal style and attitude "did not fit in" with Fleetwood Mac and by June 1973 he had left. If anything was ever recorded by Walker for Mystery to Me it was not used, and remains unreleased.