John Dando Sedding (13 April 1838 – 7 April 1891) was an English church architect, working on new buildings and repair work, with an interest in a "crafted Gothic" style. He was an influential figure in the Arts and Crafts movement, many of whose leading designers, including Ernest Gimson, Ernest Barnsley and Herbert Ibberson, studied in his offices.
His 1889 lecture, "The Architectural Treatment of Gardens", was influential in the revival espoused by Reginald Blomfield, of "Jacobean" features such as terraces, covered walks, bowling greens, clipped yew hedges and topiary, which would combine with "cottage garden" elements in the Arts and Crafts gardens of 1890–1915.
The German architect and critic Hermann Muthesius said that "he formed the first bridge between the architects' camp and that of handicraft proper".
