Surname Ridout (Ridout 
) , globally, is quite a rare cognomen. The family name Ridout is habitual in the United Kingdom, where it is quite a rare surname, Australia, where it is a rare surname, and Canada. In absolute terms, it is commonest in the United Kingdom, the United States, and Canada.
| VARIANT | COUNTRY |
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| Ridout | United Kingdom, Canada, Australia, South Africa, United States |
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thomas ridout Canadian politician (1754-1829), CA (b. 1754) |
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thomas gibbs ridout (1792-1861), CA (b. 1792) |
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| george percival ridout Canadian politician, CA (b. 1807) |
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| thomas ridout Canadian architect (1828-1905), CA (b. 1828) |
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| elizabeth harriet ridout (born 1834) (b. 1834) |
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| elizabeth harriet ridout (b. 1840) |
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| samuel ridout born 1855; died 1930 (b. 1855) |
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| george whitefield ridout US (b. 1870) |
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| herbert c. ridout British journalist and short story writer, GB (b. 1881) |
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| walter george ridout Titanic victim (b. 1882) |
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| alice ridout born:1900| (b. 1900) |
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heather ridout Australian businessperson, AU (b. 1954) |
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| ronald ridout British writer, GB (b. 1916) |
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| godfrey ridout Canadian musician, CA (b. 1918) |
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| alan ridout British composer, GB (b. 1934) |
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