Cognomen Garrioch (Garrioch 
) , in all the world, is a rare last name. The surname Garrioch is habitual in Mauritius, where it is quite a rare surname, Canada, where it is a rare surname, and Israel. In absolute terms, it is commonest in Canada, Mauritius, and the United Kingdom.
| VARIANT | COUNTRY |
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| Garrioch | Canada, United Kingdom, Mauritius, Israel, Australia |
| william garrioch Canadian politician, CA (b. 1828) |
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| alfred garrioch CA (b. 1848) |
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| henry garrioch Governor-General of Mauritius (1916-2008), MU (b. 1916) |
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| david garrioch researcher ORCID ID = 0000-0003-0827-309X (b. 1955) |
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| john magnus hurrie garrioch Peerage person ID=360569 |
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| janet elizabeth marian garrioch Peerage person ID=360570 |
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| john garrioch Peerage person ID=400643 |
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| ellen garrioch (died 1892) |
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| sydney garrioch CA |
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