Swanson is of Scottish origin, meaning "son of Swaine." It is an occupational surname that was originally given to a person who worked as a steward or server at a table. The name has been prominent in various parts of the world due to migrations over centuries, with notable bearers including American astronaut Ronald Evans and Canadian singer-songwriter Sarah McLachlan.
"Over this period, the name Swanson experienced varying popularity, with a notable peak of 11 births in 1934. However, it consistently maintained an average of around 6 births per year."