Thompson Name Meaning
English: patronymic from the Middle English personal name T(h)om(me) (see Thom ) + -son ‘son of Tom’. Thomson is usually the Scottish form that with the intrusive -p- being English. Both forms are common in Ireland. The surname Thompson is also very common among African Americans. Americanized form of Danish Norwegian and North German Thomsen and of its Swedish cognate Thomsson. Compare Thomson .
Thomson Name Meaning
Scottish English and northern Irish: variant of Thompson . Scottish: sometimes an Anglicized form of Gaelic McThomas; see McTavish McComish . Americanized form of Danish Norwegian and North German Thomsen . Compare Thompson . Americanized form (and a rare Swedish variant) of Swedish Thomsson a cognate of 3 above.
Source:
Dictionary of American Family Names 2nd edition, 2022
Similar surnames:
Thomason, Tompson, Thomas, Tomson, Thomasson, Thomerson, Hampson
From: https://www.ancestry.co.uk/learn/facts