The year 1926 in architecture involved some significant architectural events and new buildings.
- April–May – The German Zehner-Ring group of Modernist architects expands to become Der Ring.
- June 7 – While walking along the Gran Via de les Corts Catalanes in Barcelona, Antoni Gaudí is struck by a passing tram and knocked unconscious. Delays in receiving medical treatment contribute to his death in hospital a few days later. On June 12, after a funeral procession through the streets of Barcelona lined by thousands, he is buried in the crypt chapel of his unfinished church of Sagrada Família.
- November 27 – In Williamsburg, Virginia, the restoration of Colonial Williamsburg begins.
- British General Post Office K2 red telephone box, designed by Giles Gilbert Scott, is introduced, chiefly in the London area.
- The Frankfurt kitchen is designed by Margarete Schütte-Lihotzky for Ernst May's social housing project New Frankfurt in Frankfurt, Germany.
- The Russian avant-garde magazine SA is published for the first time.
- Restoration of the Tudor Owlpen Manor in the Cotswolds of England by Norman Jewson is completed.
- May 13 – Hercilio Luz Bridge, Florianopolis, Brazil, designed by Robinson & Steinman
- September 13 – Clapham South, Tooting Bec, Tooting Broadway, Colliers Wood, South Wimbledon and Morden tube stations, London, designed by Charles Holden (also Balham, opened December 6)
- December 4 - Bauhaus Dessau building, designed by Walter Gropius, opened in Dessau, Germany.
- Dormition of the Theotokos Cathedral, Satu Mare, Romania, designed by Ioan Liteanu
- Mausoleum of Yugoslavian Soldiers in Olomouc, designed by Hubert Aust
- Sacred Heart Cathedral of Harbin, China
- Southwestern Bell Building, downtown St. Louis, Missouri, USA, designed by Mauran, Russell & Crowell with I.R. Timlin
- Sourdough Inn, Fort Yukon, Alaska, USA
- Remodeling of Twin Peaks, 102 Bedford Street, Greenwich Village, New York City, USA, by Clifford Reed Daily
- 900 Stewart Avenue (Ithaca, New York), USA
- New Ways (house for Wenman Joseph Bassett-Lowke), 508 Wellingborough Road, Northampton, England, designed by Peter Behrens, "a pioneer of modern architecture in Britain"
- 21 January – Roger Taillibert, French architect
- 22 April – James Stirling, British architect (died 1992)
- 18 July – Carlo Aymonino, Italian architect and urban planner (died 2010)
- 12 October – César Pelli, Argentine-born architect (died 2019)
- 10 June – Antoni Gaudí, Spanish architect, exponent of Catalan Modernism (born 1852)
- 7 July – Fyodor Schechtel, Russian architect, graphic artist and stage designer (born 1859)
- Férrin, Ana María (2001). Gaudí, de piedra y fuego (in Spanish). Barcelona: Jaraquemada. p. 415. ISBN 978-84-932015-0-0.
- Johannessen, Neil (1994). Telephone Boxes. Princes Risborough: Shire Publications. ISBN 0-7478-0250-5.
- Melching, Karen (2006). "Frankfurt Kitchen: patina follows function". Conservation Journal (53). Archived from the original on 2009-12-18.
- The Twentieth Century Society (2017). "1926". 100 Houses 100 Years. London: Batsford. ISBN 978-1-84994-437-3.
- Quebec to take over Games' contracts.
- Roger Taillibert publie ses mémoires (French).