Around the globe, Leontius (Леонтий 
, Leontius 
) is a common male first name. The first name Leontius is habitual in Kazakhstan, where it is quite a rare male name, Russia, and Kyrgyzstan, where it is a rare male name. In absolute terms, it most frequently occurs in Russia, Kazakhstan, and Ukraine.
| leontius of caesarea Bishop of Caesarea Mazaca (b. 250) |
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| leontius of trier Bishop of Trier (5th c.) (b. 400) |
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| leontius of jerusalem Byzantine theological writer historically confused with Leontius of Byzantium (b. 500) |
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| leontius of arabissus (b. 550) |
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| leontius mechanicus Byzantine mathematician and astronomer (7th century) (b. 650) |
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| leontius of damascus monk (8th-9th century) (b. 750) |
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| leontius of constantinople Ecumenical Patriarch of Constantinople in 1189 (b. 1101) |
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| leontius pełczycki Polish Bishop (b. 1505) |
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| leontius the myroblyte (b. 1520) |
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| leontius eustratius (b. 1560) |
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| leontius hunanian (b. 1817) |
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| leontius Roman Catholic archbishop |
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| leontius of serdica bishop of Serdica |
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| leontius i of jerusalem patriarch of Jerusalem |
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| leontius of costantinople |
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