Family name Otty (Otty 
) , globally, is a rare last name. The cognomen Otty is habitual in Isle of Man, where it is quite a rare surname, Kenya, where it is a rare surname, and the United Kingdom. In absolute terms, the name is most common in Kenya, the United Kingdom, and Indonesia. Likewise, Otty is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Otty | Kenya, United Kingdom, Guatemala, Egypt, Indonesia |
| george otty Canadian politician, CA (b. 1820) |
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| timothy otty British QC, GB (b. 1967) |
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