In all the world, Кръстю (Кръстю 
, Krastyo 
, Krstiu ) is a common masculine forename. The first name Кръстю is characteristic of Bulgaria, where it is a common male name, and Greece, where it is a rare male name. Likewise, Кръстю is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Кръстю | Kazakhstan, Russia, Bulgaria |
| Krastyo | United Kingdom, Spain, Bulgaria, United States, Greece |
| Krstiu | United States |
| кръстю пейкич BG (b. 1665) |
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кръстю маринов Bulgarian general, BG (b. 1855) |
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| кръстю стоянов BG (b. 1826) |
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| кръстю захариев iconographer, BG (b. 1841) |
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| кръстю маймунков BG (b. 1835) |
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| кръстю бояджиев BG (b. 1873) |
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| кръстю капиданчев BG (b. 1880) |
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кръстю пастухов Bulgarian journalist, writer and poet (1941-2017), BG (b. 1941) |
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кръстю лафазанов Bulgarian actor, BG (b. 1961) |
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| кръстю добрев BG (b. 1903) |
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| кръстю тричков politician, BG (b. 1923) |
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| кръстю станилов BG (b. 1935) |
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| кръстю семерджиев Bulgarian weightlifter, BG (b. 1954) |
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| кръстю тулешков bulgarian entomologist, BG |
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| кръстю аризанов BG |
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