Surname Ierland (Ierland 
) , in all the world, is a rare cognomen. The cognomen Ierland is characteristic of Netherlands, where it is quite a rare surname, Belgium, where it is a rare surname, and the United Kingdom, where it is a very rare surname.
| VARIANT | COUNTRY |
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| Ierland | Netherlands, Belgium, United Kingdom, Germany, Australia |
| adriaan van ierland Dutch cabaret artist (1872-1942), NL (b. 1872) |
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| bert van ierland Dutch football player (1918-2003), NL (b. 1918) |
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john van ierland NL (b. 1964) |
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| jan van ierland judoka (1936-1965), NL (b. 1936) |
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| ekko c. van ierland economist (Wageningen Universiteit en Researchcentrum) (b. 1953) |
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| frank van ierland Peerage person ID=400428 |
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| alphons van ierland college basketball player (1998–2000) East Carolina |
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| maria rita van ierland Peerage person ID=400429 |
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