noun

• (countable) A British surname transferred from the given name.
• A Scottish surname from Scottish Gaelic.
• A place in the United States:
• A city, the county seat of McDuffie County, Georgia.
• A village in Carroll County, Illinois.
• A former city in Carlton County, Minnesota, now merged into the city of Carlton.
• A hamlet in the town of Greenwich, Washington County, New York.
• A neighbourhood of Singapore, named after Thomson Road, which was named after John Turnbull Thomson.
• A suburb of Geelong, Victoria, Australia, named after Alexander Thomson (pioneer).