Demo 1983 is a compilation album by Brazilian post-punk band Mercenárias.

Originally a demo tape recorded by the band in 1983, it was never made available to the general public until June 27, 2015, when it was fully remastered and released by independent label Nada Nada Discos.

The tracks "Polícia" and "Trashland" would be eventually re-recorded for Mercenárias' studio albums Cadê as Armas?

It is the only release of the band to feature original founding member Edgard Scandurra.

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