William Henry Bidlake MA, FRIBA (12 May 1861 – 6 April 1938) was a British architect, a leading figure of the Arts and Crafts movement in Birmingham and Director of the School of Architecture at Birmingham School of Art from 1919 until 1924.

[1] In 1882 he moved to London where he studied at the Royal Academy Schools and worked for Gothic Revival architects Bodley and Garner.

Bidlake designed many Arts and Crafts-influenced houses in upmarket Birmingham districts such as Edgbaston, Moseley, and Four Oaks (the latter then in Warwickshire and absorbed into Birmingham in 1974), along with a series of more Gothic-influenced churches such as St Agatha's, Sparkbrook – generally considered his masterpiece.

He was an associate, member, treasurer and then, from 1902–38, Professor of Architecture of the Royal Birmingham Society of Artists.

[2] In 1924, Bidlake married a woman over twenty years younger than himself and moved to Wadhurst in East Sussex, where he continued to practise until his death[2] Bidlake died in 1938 and is buried in an unmarked grave in Handsworth Cemetery, Birmingham.