Meaning and history
Trevelyan is a Cornish surname occasionally used as a given name. It derives from a Cornish place name beginning with tre, “farmstead” or “homestead,” followed by a personal or local element whose interpretation is debated. As a first name it retains this family and geographic history rather than possessing a simple character meaning. A notable bearer was British naval officer Trevelyan Napier. The surname is also associated with British historians George and G. M. Trevelyan.