Seymour Thorne George (10 October 1851 – 2 July 1922) was a New Zealand politician. The premier, Sir George Grey, was his wife's half-uncle and adoptive father, and that relationship resulted in Thorne George representing the South Island electorate of Hokitika despite him being based in the North Island. He later represented the Rodney electorate. Thorne George was later Mayor of Parnell.