Family name Smialy (Smialy 
) , globally, is a very rare surname. The surname Smialy is habitual in Poland, where it is a very rare surname, Germany, and the United Kingdom, where it is an extremely rare surname. More prevalently, Smialy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Smialy | Germany, Brazil, Poland, United Kingdom, India |
| józsef smialy (b. 1906) |
|