Robert Sproule (16 March 1881 – 16 July 1948) was an Irish-born Australian public servant and politician who served as Solicitor General for New South Wales from 1920 until 1922.

[1] He attended the Crown Street Public School until he was 14, leaving to work as a correspondence clerk and bookkeeper, continuing his education at night school,[2] He sat the public service exam in March 1899,[3][4] and was appointed a junior clerk in the Petty Sessions office of the Justice Department at Goulburn,[5] transferring to Redfern in December 1901.

[1][8] Sproule was appointed Solicitor General in the Storey ministry on 15 April 1920, appointed as a Labor member of the Legislative Council apparently by virtue of his office in what Keith Mason described as the effective beginning of the de-politicsation of the office.

The National Advocate, which had a reputation as the mouthpiece of the Labor Party, described Sproule as having practical experience in all the courts.

[15] On 15 March 1911 he married Effie Stevenson, however she died from pneumonia on 12 August 1921.