Henry Inigo Triggs (1876–1923) was an English country house architect and designer of formal gardens, and author.
Harry Benjamin Inigo Triggs was born in Chiswick, London, on 28 February 1876, to parents James Triggs, carpet agent, and his wife Celia Anne, née Bryant. His older brother was Arthur Bryant Triggs (1868–1936) born in Chelsea, who in 1887 emigrated to Australia, becoming a wealthy New South Wales grazier (known as The Sheep King) and collector of art, books and coins. The architect Inigo Jones was a distant relative. 1907 he married Gladys Claire.
In 1910 Triggs bought the property then called Fry's Farm, in Liphook, Hampshire. He re-designed the farmhouse and gardens as his home, and renamed it Little Boarhunt, based on a legend about King John hunting boar in the district. The house is now a Grade II listed building, being a representative romantic house of the Arts and Crafts Movement.
H(enry) Inigo Triggs died on 9 April 1923 in Taormina, Sicily, Italy. A memorial tablet is dedicated to him in St Mary's Church, Bramshott.
Triggs designed many formal gardens and later some country houses, mostly in southern England. He specialised in historical research and in re-creating gardens of the past. His books influenced the Italian mode of the Arts and Crafts style in England. He also designed Cooper's Bridge at Bramshott and the War Memorial in Petersfield High Street in 1922.
In 1906 he was awarded the Godwin Bursary, presenting two reports: "The planning of public squares and open spaces" (76 pages), relating to the cities of Paris, Berlin, Vienna and Munich, including public monuments and fountains; "Le Petit Palais, Paris" (20 pages), a detailed description of the Musée des Beaux-Arts building, Avenue Winston Churchill, designed by Charles Girault and built between 1897 and 1900.