Throughout the world, Sezny (Sezny 
) is a very rare male forename. The forename Sezny is habitual in Western Europe, particularly France, where it is a very rare masculine name. Much less frequently, Sezny is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Sezny | New Zealand, United States, France |
| sezny le roux French cyclist (1914-1983) (b. 1914) |
|