A greatest hits album or best-of album is a type of compilation album that collects popular and commercially successful songs by a particular artist or band. While greatest hits albums are typically supported by the artist, they can also be created by record companies without express approval from the original artist as a means to generate sales. They are typically regarded as a good starting point for new fans of an artist, but are sometimes criticized by longtime fans as not inclusive enough or necessary at all.

Johnny's Greatest Hits is a compilation album by vocalist Johnny Mathis that was released by Columbia Records on March 17, 1958, and has been described as the "original greatest-hits package". The LP collected all but one of the songs from the first six singles he recorded, including eight A- and B-sides that made the singles charts in The Billboard as well as three B-sides that did not chart and one new track that was co-written by Mathis but not released as a single.