Cognomen Diday (Diday 
, Диде 
) , across the world, is a rare last name. The last name Diday is characteristic of Kazakhstan, where it is a rare surname, Switzerland, and France. In absolute terms, this name is the most popular in Kazakhstan, India, and France. Also, Diday is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diday | Philippines, United States, India, France, Indonesia |
| Диде | Kyrgyzstan, Russia, Ukraine, Kazakhstan |
|
françois diday Swiss artist (1802-1877), CH (b. 1802) |
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| charles-paul diday P. Diday, ex-surgeon to the Hospital de l'Antiquaille, Lyons, FR (b. 1813) |
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| edwin diday FR (b. 1940) |
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| edwin diday Ph.D. Université Pierre-et-Marie-Curie - Paris VI 1969 |
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