Organasm is the fourth full-length studio album by the Australian progressive metal band Alchemist.

It was issued in Australia by Chatterbox, with D.W. Norton producing, on 6 March 2000 as their first release with the label.

Organasm featured generally shorter songs than the previous Alchemist albums, but was still rated highly by critics.

A demo version of the lead track, "Austral Spectrum", had appeared on a 1999 compilation album.

He describes Adam Agius' vocal style as "akin to Entombed wrestling with Pink Floyd" and suggested the "Evolution" trilogy evoked the spirit of early Rush.