Cognomen Coltart (Coltart 
) , in the world, is a rare last name. The cognomen Coltart is habitual in New Zealand, where it is a rare surname, the United Kingdom, and Canada. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and Canada. Very seldom, Coltart is the forename as well as the last name.
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| Coltart | China, United Kingdom, United States, Canada, New Zealand |
| john g. coltart confederate States Army officer (b. 1826) |
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david coltart Minister in the Cabinet of Zimbabwe, ZW (b. 1957) |
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andrew coltart Scottish golfer and television commentator, GB (b. 1970) |
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| nina coltart British psychoanalyst (1927-1997), GB (b. 1927) |
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| simon coltart British judge, GB (b. 1946) |
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| christopher coltart QC 2014 (b. 1968) |
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| rupert gordon coltart (born 1971) (b. 1971) |
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| amanda jane coltart (born 1973) (b. 1973) |
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| albert mounsey coltart Peerage person ID=616673 |
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| ernestine coltart Peerage person ID=166520 |
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| don m coltart researcher |
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| clyde dennis gordon coltart Peerage person ID=616674 |
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| cordelia e m coltart researcher |
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| g s coltart researcher |
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| robert coltart Peerage person ID=215353 |
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