Michael Constantine Diamond, OAM (born 20 May 1972)[1] is a professional target shooter from Australia.

[2] In 2016, Diamond was charged with firearms offences and drink driving following an alleged domestic dispute involving his brother.

[7] The charges resulted in the automatic suspension of his firearms licence under Australian law.

[5] A court later quashed these convictions on appeal, questioning the legality of the police search and rejected claims by the prosecution that the firearms were not kept safe.

[6] Nonetheless, police did not reinstate his firearms licence and therefore he has been unable to participate or compete in his sport ever since.