McArthur is a surname. It comes from the Celtic personal name Arthur. It denotes the 'son of Arthur', which means noble one.
Notable people with the surname include:
Barry McArthur (born 1947), English professional footballerCharles McArthur (1844–1910), British maritime insurance specialist and Liberal Unionist politician from Liverpool, MP between 1897 and 1910Daniel McArthur (1867–1943), Scottish footballerDuncan McArthur (1772–1839), 11th Governor of OhioGale McArthur, All-American basketball playerJames McArthur (born 1987), Scottish footballerJohn McArthur (1826–1906), Union general during the American Civil WarKatherine McArthur (born 1971), American astronautKathleen McArthur (1915–2001), Australian environmental activistKen McArthur (1881–1960), South African athleteLewis A. McArthur (1883–1951), American businessman, geographer and authorLewis Linn McArthur (1843–1897), American newspaper publisher and Oregon Supreme Court JusticeNancy McArthur, American children's authorStewart McArthur (born 1937), Australian politicianWally McArthur (disambiguation)William Pope McArthur (1814–1850), a United States Coast Survey officerWilliam S. McArthur (born 1951), American astronaut