Sidney R. J. Smith (1858–1913) was a Late Victorian English architect, best known for the work he undertook in the 1880s and 1890s for the philanthropist Henry Tate including the original Tate Gallery at Millbank.

Works

• Outdoor Relief Station, Norwood (1887)
• Tate Free Library, South Lambeth Road (1887)
• Durning Library, Kennington (1889)
• Tate Free Library, Streatham (1890)
• Tate Free Library, Brixton Oval (1892)
• Cripplegate Institute, 1 Golden Lane (1896) ^[1]
• National Gallery of British Art (Tate Gallery) (1897)
• 16–19 Dunraven Street, Mayfair (1897)
• St Thomas, Telford Park, Streatham Hill (with Spencer William Grant) ^[2]
• Tate Mausoleum, West Norwood Cemetery (c.1890)
• Euston Underground station, City and South London Railway (1907) (demolished) ^[3]