Eileen Isabella Ronnie Gibson (16 June 1926 – 18 October 1947), known professionally as Gay Gibson, was a British actress who went missing during a voyage between Cape Town, South Africa, and Southampton, England, United Kingdom, in October 1947. The criminal case that followed was known as the Porthole Murder, as James Camb, the man who would be convicted of killing Gibson, admitted that he had pushed her body out of the porthole in her cabin aboard the MV Durban Castle into the Atlantic Ocean. Camb claimed that the two had engaged in consensual sex and that she had died of an apparent sudden illness; he had then panicked and thrown her body out of the porthole.