All over the world, Cornwallis (Cornwallis 
) is a very rare masculine forename. More prevalently, Cornwallis is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cornwallis | United Kingdom, Australia, India, Malaysia, United States |
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fiennes cornwallis, 1st baron cornwallis British politician (1864-1935), GB (b. 1864) |
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| fiennes cornwallis British Army officer, GB (b. 1831) |
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| kinahan cornwallis British diplomat, GB (b. 1883) |
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| vere mabel cornwallis (1889-1964) (b. 1889) |
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| fiennes wykeham mann cornwallis (1890-1921) (b. 1890) |
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| wykeham cornwallis, 2nd baron cornwallis English cricketer (1892-1982), GB (b. 1892) |
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| fiennes cornwallis British peer (1921-2010), GB (b. 1921) |
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| fiennes wykeham jeremy cornwallis, 4th baron cornwallis British peer (b. 1946) |
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| unknown son cornwallis Peerage person ID=465919 |
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| sir john cornwallis Peerage person ID=252848 |
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| unknown son cornwallis Peerage person ID=465918 |
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| sir charles cornwallis Peerage person ID=26187 |
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| sir william cornwallis (died 1519) |
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| fiennes alexander wykeham martin cornwallis (born 1987), GB (b. 1987) |
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