|Horace Archer Byatt|
Sir Horace (Archer) Byatt by Bassano. Whole-plate glass negative, 15 August 1922
|Commissioner of British Somaliland|
July 1911 – 1914
|Preceded by||William Henry Manning|
|Succeeded by||Geoffrey Francis Archer|
|Governor of Tanganyika|
22 July 1920 – 20 July 1922
|Preceded by||Heinrich Schnee
(German East Africa)
|Succeeded by||Donald Cameron|
|Governor of Trinidad and Tobago|
22 November 1924 – 1929
|Preceded by||Samuel Herbert Wilson|
|Succeeded by||Alfred Claud Hollis|
|Born||22 March 1875
Tottenham, Middlesex, United Kingdom
|Died||8 April 1933
London, United Kingdom
|Spouse(s)||Olga Margaret Campbell|
Sir Horace Archer Byatt GCMG (22 March 1875 – 8 April 1933) was a British colonial governor. In the early part of his career he served in Nyasaland, British Somaliland, Gibraltar and Malta. Later, he served in British East Africa, becoming the first governor of the British mandate of Tanganyika. He was then the governor of Trinidad and Tobago.
Byatt was born 22 March 1875 in Tottenham, Middlesex to school teacher Horace Byatt M.A., of Midhurst, Sussex (where he taught H. G. Wells at Midhurst Grammar School) and Laura (née Archer). He attended Lincoln College, Oxford, obtaining a Bachelor of Arts degree in 1898. Following university, he began a career in the Colonial Service. In 1898 he began working in Nyasaland (what is now Malawi), and in 1905, he went to British Somaliland. He was appointed commissioner and commander-in-chief of British Somaliland in 1911, serving until 1914, when he became Colonial Secretary in Gibraltar. From 1914 to 1916 he was lieutenant-governor and Colonial Secretary of Malta. 
From 1916 he was an administrator in British East Africa, and in 1920 he became the first governor of the new British mandate of Tanganyika. In Tanganyika he was responsible for the transfer of power between the Germans and the British, following World War I. Byatt was noted as a liberal governor with sympathies towards African interests. He was governor and commander in chief of Trinidad and Tobago between 1924 and 1929.
- Sir Hugh Campbell Byatt KCVO CMG (1927-2011), British ambassador to Angola and Portugal,
- Ronald (Robin) Archer Campbell Byatt (born 1930), British diplomatist, High Commissioner in Zimbabwe and New Zealand, Ambassador to Morocco
- David Byatt (born 1932).
Horace Byatt died 8 April 1933 in London, aged 58.
- Experiment in Autobiography. Discoveries and Conclusions of a Very Ordinary Brain, H. G. Wells, 1934, pg 108
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- "Obituary: Sir Hugh Campbell Byatt KCVO CMG". The Scotsman. Retrieved 30 September 2017.
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- Beolens, Bo; Watkins, Michael; Grayson, Michael (2009). The Eponym Dictionary of Mammals. JHU Press. p. 67. ISBN 0-8018-9304-6.