Sir Themistocles "Temi" Zammit CMG (or Żammit; 30 September 1864 – 2 November 1935) was a Maltese archaeologist and historian, professor of chemistry, medical doctor, researcher and writer.

He served as Rector (1920–26) of the Royal University of Malta and first Director of the National Museum of Archaeology in his native city, Valletta.

[1] After graduating in medicine from the University of Malta, Zammit specialised in bacteriology in London and Paris.

It is understood that in 1905 the discovery of contaminated milk as the vector for transmission to humans of Brucellosis melitensis present in the blood of the goat greatly contributed to the elimination from the islands of undulant fever, earning him the knighthood.

[2][3] Author of several literary works in the Maltese language, Zammit was conferred the DLitt Honoris Causa by Oxford University.