The Hector Medal, formerly known as the Hector Memorial Medal, is a science award given by the Royal Society Te Apārangi in memory of Sir James Hector to researchers working in New Zealand. It is awarded annually in rotation for different sciences – currently there are three: chemical sciences; physical sciences; mathematical and information sciences. It is given to a researcher who "has undertaken work of great scientific or technological merit and has made an outstanding contribution to the advancement of the particular branch of science." It was previously rotated through more fields of science – in 1918 they were: botany, chemistry, ethnology, geology, physics (including mathematics and astronomy), zoology (including animal physiology). For a few years it was awarded biennially – it was not awarded in 2000, 2002 or 2004.