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Conspicuous Only in Its Absence is a live album by the American psychedelic rock band the Great Society, released in 1968 by Columbia Records. It was their first album released and consists of recordings made during a live concert performance by the band at The Matrix club in San Francisco in 1966. Additional recordings from the same concert were released later in 1968 on the album How It Was. These two albums were repackaged in 1971 as a double album called Collector's Item.
Upon its initial release in 1968, Conspicuous Only in Its Absence reached No. 166 on the Billboard Top LPs chart. A single featuring "Sally, Go 'Round the Roses" and "Didn't Think So" was released in conjunction with the album by Columbia Records but it failed to chart.