Worldwide, Oton (Oton 
, Όθων 
, Отон 
) is quite a common largely masculine, but seldom female first name. The forename Oton is habitual in Slovenia, where it is quite a rare boy's name, Nigeria, where it is quite a rare unisex name, and Croatia, where it is quite a rare male name. Measured by absolute frequency, it is commonest in Nigeria, Brazil, and Mexico. Also, Oton is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Oton | Spain, Mexico, Philippines, Nigeria, Brazil |
| Όθων | Greece |
| Отон | Ukraine, Kyrgyzstan |
| Otón | Spain, Uruguay, Argentina |
| oton škola SI (b. 1805) |
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| oton trabant Slove missionary, SI (b. 1816) |
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oton iveković Croatian painter (1869-1939), HR (b. 1869) |
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oton župančič Slovenian poet, writer (1878-1949), SI (b. 1878) |
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oton fettich-frankheim SI (b. 1885) |
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oton bajc SI (b. 1903) |
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| oton sadar Slovenian photographer, SI (b. 1864) |
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| oton ploj SI (b. 1861) |
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| oton bošnjak (b. 1862) |
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| oton papež SI (b. 1867) |
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| oton vinski Croatian banker, HR (b. 1877) |
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| oton jiménez botanist (1895-1988), CR (b. 1895) |
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| oton of pula Franciscan priest (b. 1896) |
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| oton gorski (b. 1886) |
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| oton knezović (b. 1890) |
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