Cognomen Bulaja (Bulaja 
) , around the globe, is a rare last name. The family name Bulaja is habitual in Croatia, where it is quite a rare surname, Canada, where it is an extremely rare surname, and Philippines. Measured by absolute frequency, it is commonest in Croatia, the United States, and Philippines. Very seldom, Bulaja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bulaja | Philippines, United States, India, Nigeria, Croatia |
| helena bulaja Croatian multimedia artist, director and animator, HR (b. 1971) |
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| toni bulaja Croatian sailor, HR (b. 1974) |
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| ivan bulaja Croatian yacht racer, HR (b. 1977) |
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Ana, Ivana, Marija, Matija, Andrea, Dragan, Josipa, Jelena, Nikola, Helena, Filip, Martina, Dragica, Nevenka, Kristina, Tomislav, Nikolina, Nediljka, Hristina, Vladimir, Zvonimir, Stjepan, Beth Sheba, Vesna, Tvrtko, Ante, Kata, Lana, Luka, Jure, Toni, Nena, Issa, Irma, Nenad, Ivan, Marko, Mirko, Almir, Amela, Ahmed, Dejan, Goran, Laura, Josip, Mario, and Valentina