Family name Cardiff (Cardiff 
, Caer 
) , across the world, is quite a rare cognomen. The surname Cardiff is characteristic of Ireland, where it is quite a rare surname, New Zealand, and France, where it is a rare surname. In absolute terms, it is the most numerous in the United States, France, and Canada. Very seldom, Cardiff is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cardiff | Canada, France, Ireland, United Kingdom, United States |
| Caer | Belgium, Canada, France, United States, United Kingdom |
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jack cardiff British cinematographer, director and photographer (1914-2009), GB (b. 1914) |
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janet cardiff Canadian installation and sound artist, CA (b. 1957) |
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| paddy cardiff Irish trade unionist, IE (b. 1925) |
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craig cardiff Canadian singer, CA (b. 1976) |
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| gladys cardiff American author and educator, US (b. 1942) |
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| jim cardiff Canadian ice hockey defenceman, CA (b. 1944) |
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| steve cardiff Canadian politician, CA (b. 1957) |
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| david cardiff (born 1964), GB (b. 1964) |
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| shaun cardiff researcher |
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| ereld wingfield boteler cardiff Peerage person ID=262861 |
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| lynda m cardiff researcher |
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| michael cardiff researcher |
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| robert cardiff American pathologist |
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| ereld boteler wingfield cardiff Peerage person ID=499406 |
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| richard cardiff (died 2002) |
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