Anna MacGillivray Macleod (15 May 1917 – 13 August 2004) was a Scottish biochemist and academic, an authority on brewing and distilling.

[6] In 1961, together with Leslie Samuel Cobley, she co-edited "Contemporary Botanical Thought", published by Oliver and Boyd.

During her time at Heriot-Watt University, Macleod supervised the PhD work of Sir Geoff Palmer.

[7] In 1993, Heriot-Watt University awarded her an honorary Doctorate of Science[8] for her discovery of gibberellic acid, which was a great advantage for the maltsters, as it shortened the malting process.

[6] At that occasion, the Dean of the Faculty of Science, Professor Philip G. Harper, mentioned that Macleod's association with the brewing industry puts her in the same fraternity as other scientists, such as James Watt (power), Louis Pasteur (pasteurisation), Peter Griess (colour chemistry), Joseph Williams Lovibond (colour physics), Gosset (statistics) and the man after whom the medal was named.

He said that she was recognised nationally and internationally with distinction as a university teacher, scholar, scientist, technologist and as a brewer.