In the entire world, Blaž (Blaž 
, Blaz 
, Блаж 
) is quite a common masculine forename. The given name Blaž is habitual in Slovenia, where it is a common masculine name, Croatia, where it is quite a common male name, and Sierra Leone, where it is quite a rare masculine name. Also, Blaž is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Blaž | Bosnia and Herzegovina, United States, Slovenia, Germany, Croatia |
| Blaz | Poland, Mexico, Slovenia, Peru, Croatia |
| Блаж | Russia, Ukraine |
| بلاج | Iran, Morocco |
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blaž jurjev trogiranin Italian artist, HR (b. 1301) |
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blaž baromić Croatian printer, calligrapher, founder of the Senj printing press in 1494, HR (b. 1450) |
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| blaž škrinjarić (b. 1520) |
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blaž terpinc SI (b. 1759) |
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| blaž kumerdej teacher (1738-1805), SI (b. 1738) |
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| blaž antun kovačević Habsburg Monarchy general, HR (b. 1738) |
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blaž blaznik SI (b. 1786) |
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blaž crobath politician and lawyer (1797-1848), SI (b. 1797) |
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blaž potočnik (1799-1872), SI (b. 1799) |
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| blaž hafner SI (b. 1758) |
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blaž lorković Croatian economist and lawyer (1839-1892), HR (b. 1839) |
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| blaž ovijač Austrian member of Empire parliament (Austria empire), lawyer and servant, SI (b. 1790) |
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blaž matek mathematician (1852-1910), SI (b. 1852) |
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| blaž žemva SI (b. 1808) |
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blaž jurko (b. 1859) |
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Kos, Pavlin, Pesjak, Ribič, Godina, Horvat, Zupanc, Sajovic, Strmole, Križaj, Demšar, Kavčič, Koritnik, Križnar, Podobnik, Zadravec, Barišić, Kovačič, Klobučar, Petrovič, Potočnik, Habjanič, Krajnc, Zupančič, Kranjc, Kovač, Knez, Pipp, Grum, Jarc, Turk, Čeh, Milar, Sever, Starc, Kuhar, Primc, Golob, Novak, Vidic, Finžgar, Oblak, Zupan, Šmid, Babnik, Bilić, Bizjak, Košir, and Klemenčič