Around the globe, Cyrenius (Cyrenius 
) is an extremely rare male first name. Likewise, Cyrenius is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cyrenius | United Kingdom, South Africa, Brazil, Germany, United States |
| cyrenius hall American painter, US (b. 1830) |
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| cyrenius adelbert newcomb American businessman, US (b. 1837) |
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| cyrenius schenck (b. 1828) |
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| cyrenius penny black American politician, US (b. 1843) |
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