William Henry Romaine-Walker (1854–1940) was an English architect and interior decorator.
Romaine-Walker was born into a family of art dealers. He was educated at Lancing College, and then articled to the architect George Edmund Street. He was elected an Associate of the Royal Institute of British Architects in 1881, and in the same year began working in a partnership with Augustus William Tanner, which lasted until 1896.
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