Diamond Mine is a maze video game first published by MRM Software for the Acorn Electron and BBC Micro home computers in 1984.

Diamond Mine was reissued by Blue Ribbon in 1985 and ported to other systems in 1985 and 1986.

Blue Ribbon released a sequel, Diamond Mine II, at the same time.

The aim of the game is to guide a pipe through a maze-like mine to collect diamonds while avoiding hitting the walls or the patrolling monsters.

In 1985, Blue Ribbon published a sequel from the same programmer, Diamond Mine II.