Surname Sisask (Sisask 
) , worldwide, is a rare family name. The cognomen Sisask is characteristic of Northern Europe, particularly Estonia, where it is quite a common surname, Sweden, where it is a rare surname, and Finland. Measured by absolute frequency, the name is most common in Estonia, Sweden, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Sisask | Estonia, Spain, Sweden, United Kingdom, Finland |
| peeter sisask (b. 1885) |
|
|
|
urmas sisask Estonian composer, EE (b. 1960) |
|
|
kaia sisask Estonian translator, editor, EE (b. 1967) |
|
| richard sisask (b. 1909) |
|
|
| heino sisask Estonian politician and athletics competitor, EE (b. 1928) |
|
|
|
merike sisask researcher, EE |
|
| rudolf sisask (b. 1926) |
|
|
| helli sisask EE (b. 1945) |
|
|
| olof per ale sisask Ph.D. University of Bristol 2009 |
|
|
| valeria sisask |
|