Simpson surname meaning

Simpson is an English and Scottish patronymic: “son of Sim.” Sim was a shortened or familiar form of Simon, a widespread medieval personal name, so the surname could arise independently in many places. The -son ending makes the relationship more explicit than some surnames built from the same given name. Simson and Sympson are historical-looking spellings, while Simms may be related in some families but has its own formation. Simon’s ancient name history is separate from the surname’s practical construction. Parent’s name is therefore the high-confidence catalog type, without implying one universal Simpson ancestor.