Sir Hugh Hoyles (October 17, 1814 – February 1, 1888) was a politician and lawyer who served as the third premier of the colony of Newfoundland.

Educated in Nova Scotia Hoyles trained as a lawyer and returned to St John's in 1842, quickly establishing a large and lucrative legal practice.

He rapidly became the Conservative leader, opposing responsible government, on the grounds that the colony was not ready for it, and throwing his weight behind Bishop Feild's campaign to divide the Protestant educational grant and put Anglicans on the same footing as Catholics.

This proposal alienated Methodists who thereupon voted for the Catholic Liberal Party so that, in the 1855 election, the first after responsible government, Hoyles found himself leader of the Opposition.

In 1861, his chance came when he was hired as a lawyer by senior judges to fight Premier John Kent's plans to reduce their salaries.