The Westray Mine was a coal mine in Plymouth, Nova Scotia, Canada. Westray was owned and operated by Curragh Resources Incorporated (Curragh Inc.), which obtained both provincial and federal government money to open the mine, and supply the local electric power utility with coal.

The mine opened in September 1991, but closed eight months later when it was the site of an underground methane explosion on May 9, 1992, killing all 26 miners working underground at the time. The week-long attempts to rescue the miners were widely followed by national media until it was obvious there would be no survivors.

About a week later, the Nova Scotia government ordered a public inquiry to look into what caused one of Canada's deadliest mining disasters, and published its findings in late 1997. The report stated that the mine was mismanaged, miners' safety was ignored, and poor oversight by government regulators led to the disaster. A criminal case against two mine managers went to trial in the mid-1990s, but ultimately was dropped by the crown in 1998, as it seemed unlikely that a conviction could be attained. Curragh Resources went bankrupt in 1993, partially due to the disaster.

117 miners became unemployed almost immediately after the explosion; they were paid 12 weeks' severance six years after the mine's closure, but only when the provincial government was pressured to intervene. The mine was dismantled and permanently sealed in November 1998.