Throughout the world, Justinian (Justinian 
, Юстиниан 
, Юстиніан 
) is a rare boy's given name. The first name Justinian is characteristic of Tanzania, where it is a rare boy's name, Romania, and Austria. Not in comparison with a country's population, the name is most common in Tanzania, Romania, and the United States. More frequently, Justinian is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Justinian | Philippines, United States, Singapore, Tanzania, Romania |
| Юстиниан | Russia, Kyrgyzstan |
| Юстиніан | Ukraine |
Giustiniano, Iustinian, Justynian, and Юстініан
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justinian von holzhausen German politician (1502-1553), DE (b. 1502) |
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sir justinian isham, 2nd baronet British politician (1610-1675), GB (b. 1610) |
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justinian isham English baronet and Member of Parliament (b. 1658) |
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| justinian pagitt English lawyer and diarist (b. 1612) |
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| justinian von welz Austrian nobleman, AT (b. 1621) |
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justinian isham English baronet and Member of Parliament, GB (b. 1687) |
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justinian isham English baronet (1740-1818), GB (b. 1740) |
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| justinian schlichtegroll DE (b. 1690) |
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| justinian von thoelldenitz DE (b. 1719) |
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| justinian von günderrode (b. 1721) |
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| justinian a sancto blasio wimmer (1738-1795), AT (b. 1738) |
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| justinian casamajor (c 1772-1821) Diplomat (b. 1746) |
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| justinian von adlerflycht German jurist, DE (b. 1761) |
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justinian ladurner IT (b. 1808) |
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| sir justinian isham, 8th bt. (1773-1845), GB (b. 1773) |
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Gia, Justa, Elias, Edwin, Eugen, Frank, Ivona, Sharon, Stella, Sprian, Alicia, Albert, Angela, Anisia, Anitha, Anicia, Adilia, Advera, Agness, Beatha, Kaumbya, Peleus, Julia, Rainer, Jeska, Jovin, Abel, Amos, King, Jean, Nick, Esta, Maria, Aloys, Aneth, Adolf, Asela, Audax, Cretu, Bruno, Pavia, Rojas, Diana, Leana, Jaden, Jonas, Jones, Jesca, and Rogers