Cognomen Sluníčko (Sluníčko 
) , in all the world, is a very rare family name. The family name Sluníčko is characteristic of Eastern Europe, particularly Czechia, where it is a rare surname. Likewise, Sluníčko is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sluníčko | Czechia |
|
jan sluníčko CZ (b. 1816) |
|
| jan sluníčko CZ (b. 1852) |
|
|
| václav sluníčko (b. 1928) |
|