Jules Omer John Malfroy (4 December 1901 – 3 August 1973) was a prominent New Zealand lawyer, legal advisor to the British government during the Second World War,[1] and an early twentieth century rugby union international.

He then went on to study for honours in law and LL.M., whilst practising as both a barrister and solicitor in the employ of the legal firm of Bell, Gully, Mackenzie, and O'Leary.

However, from Victoria University College he gained a law travelling scholarship that took him to Trinity Hall, Cambridge.

[5] He was described as "the nuggetty little chap, with an abnormally long stride" whilst playing for the New Zealand University and Wellington sides.

He entered Trinity Hall, Cambridge, and from there was awarded a Harkness Fellowship, under which he continued to specialise in international law at Columbia University, New York, and Berkeley College, California.

During the Second World War he attained the rank of wing commander in the administrative branch of the Royal Air Force.