The Hokitika by-election 1878 was a by-election held in the multi-member Hokitika electorate during the 6th New Zealand Parliament, on 26 June 1878. The by-election was caused by the resignation of incumbent MP Charles Button and was won by Seymour Thorne George, who defeated Gerard George Fitzgerald. Thorne George was suggested as a candidate by the premier, Sir George Grey; he was the Premier's nephew, and lived in the North Island.