Globally, Трайко (Трайко 
, Trayko 
, Traiko 
) is quite a rare boy's first name. The given name Трайко is habitual in Bulgaria, where it is quite a common masculine name, and France, where it is a very rare boy's name. Likewise, Трайко is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Трайко | Bulgaria, Russia, Ukraine |
| Trayko | Spain, France, Bulgaria, Argentina, Greece |
| Traiko | France, Bulgaria, Argentina, Greece, United States |
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трайко цветков китанчев Bulgarian writer and revolutionary (1858-1895), BG (b. 1858) |
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трайко благоев BG (b. 1876) |
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| трайко данданов Bulgarian revolutionary, GR (b. 1872) |
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| трайко тръпков Bulgarian revolutionary, BG (b. 1880) |
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| трайко симеонов Bulgarian writer, BG (b. 1886) |
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| трайко христов Bulgarian politician (1899-1934), BG (b. 1899) |
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| трайко запрянов BG (b. 1904) |
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