Across the world, Gajsek (Gajsek 
) is an extremely rare unknown gender first name. Much more prevalently, Gajsek is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gajsek | Serbia, Slovenia, Germany, Czechia, Austria |
Mr, Urska, Martin, Monika, Miriam, Alenka, Alfred, Branko, Primoz, Rezita, Daniel, George, Jelena, Noella, Zdenka, Martina, Antonin, Tatjana, Miroslav, Lorraine, Tomislav, Stephanie, Iztok, Franc, Tasha, Johan, Ms, Ana, Leo, Tim, Eva, Samo, Alen, Alja, Luka, Tina, Christian, Nina, Marko, Matic, Matej, Mitja, Anton, Breda, Dejan, David, Goran, Janez, Mario, and Christina