Paymaster Joseph Theodore Gedge (27 March 1878 – 6 August 1914) was the first British officer to die in World War I when HMS Amphion was sunk by a German mine. HMS Amphion was also the first British vessel to be sunk during World War I. In 1929 the Royal Navy instituted the Gedge Medal, the first medal for professional merit that had been given to the Accountant Branch of the Royal Navy. He was further commemorated when his old school named a science block in his memory, raising a fund that was supported by Fleet Lord Jellicoe.