Robert Alfred Ernest Greenshields KC (February 2, 1861 – September 28, 1942) was Chief Justice of the Superior Court of the Province of Quebec; Dean of the Faculty of Law at McGill University and 9th Chancellor of Bishop's University.

Educated at Danville Academy, he graduated from in Arts from McGill University, 1883, and in civil law in 1885.

In 1910, he was appointed Judge of the Superior Court of the Province of Quebec, becoming Chief Justice in 1929.

[1] In 1932, he succeeded Frederick Edmund Meredith as Chancellor of Bishop's University, a position he held until his death in 1942.

They lived in Montreal's Golden Square Mile at 3465 Simpson Street and kept a summer property at St. Andrews, New Brunswick.