The Greek Marriages Act 1884 is an act of the British Parliament which allowed courts to declare the validity of Greek Orthodox marriages made between 1836 and 1857.

The marriages were celebrated either in their homes or at the Greek Church in London, which by this time had become St Sophia's Cathedral.

The Act laid out a procedure for a court to declare such a marriage valid, and the requirements for doing so.

The first case brought under the Act was Zarafi v Attorney General, in August 1885.

This legislation in the United Kingdom, or its constituent jurisdictions, article is a stub.