Arthur William Longbottom (25 May 1883 – 12 September 1943) was a Labour Party politician in the United Kingdom.
He worked as a railway townsman, and became active in the Labour Party.
He was elected as member of parliament for Halifax at a by-election in July 1928 in the West Yorkshire seat of Halifax, following the resignation of the Speaker of the House of Commons, John Henry Whitley, who had represented the seat as a Liberal since 1900.
However, when Labour's vote collapsed at the 1931 general election, he lost the seat to the Conservative Gilbert Gledhill.
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