Eugenia is a small community in the municipality of Grey Highlands, Grey County, in Southwestern Ontario, Canada, located just north of the community of Flesherton. An unincorporated hamlet of Artemesia Township for most of its history, Eugenia was amalgamated into the Grey Highlands in 2001. Due to nearby Lake Eugenia, Eugenia Falls, the Bruce Trail and the ski resorts of the Beaver Valley, it has become a popular tourist and cottage destination. The nearby Eugenia Power Station has the highest head of water of any hydroelectric generator in Ontario, and has provided a significant amount of electricity to the provincial grid for a century.