| Demo 1983 | |
| Type: | compilation |
| Artist: | Mercenárias |
| Border: | yes |
| Released: | June 27, 2015 |
| Recorded: | 1983 |
| Genre: | Post-punk, art punk |
| Label: | Nada Nada Discos |
| Prev Title: | The Beginning of the End of the World |
| Prev Year: | 2005 |
| Next Title: | Box 83–87 |
| Next Year: | 2018 |
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? and Trashland, respectively.
It is the only release of the band to feature original founding member Edgard Scandurra.