Chesley Furneaux "Ches" Crosbie, is a Canadian lawyer and former politician. Crosbie was elected leader of the Progressive Conservative Party of Newfoundland and Labrador on April 28, 2018 serving until March 31, 2021. He served as the Leader of the Opposition in the Newfoundland and Labrador House of Assembly from 2018 until 2021.

The Progressive Conservative Party of Newfoundland and Labrador is a provincial political party in Newfoundland and Labrador, Canada. The party was founded in 1949 and most recently formed the Government of Newfoundland and Labrador from the 2003 general election until the 2015 general election. The party has served as the official opposition to the government of Newfoundland and Labrador since 14 December 2015. On October 14, 2023, MHA Tony Wakeham was elected leader.