Across the world, Semmy (세미 
, Semmy 
, Семми) is quite a rare unisex given name. The first name Semmy is habitual in South Korea, where it is a rare female name, Indonesia, where it is a rare dominantly boy's, but seldom female name, and Tanzania, where it is a rare epicene name. Much less frequently, Semmy is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 세미 | South Korea |
| Semmy | Tanzania, South Africa, Philippines, Indonesia, Uganda |
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semmy friedmann Swedish actor, SE (b. 1891) |
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| semmy liefmann (b. 1838) |
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| semmy rubenson SE (b. 1839) |
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| semmy steinberg DE (b. 1845) |
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| semmy levy holocaust victim, b. 1862-12-01, DE (b. 1862) |
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| semmy engel German architect, DE (b. 1864) |
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| semmy benjamin holocaust victim, b. 1873-04-26, DE (b. 1873) |
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| semmy nyström (b. 1869) |
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| semmy goldschmidt holocaust victim, b. 1882-10-12 (b. 1882) |
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| semmy rosenberg holocaust victim, b. 1900-04-17 (b. 1900) |
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| semmy stahlhammer SE (b. 1954) |
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| semmy lambertus mboeik Indonesian politician (born 1969 in Kupang), ID (b. 1969) |
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| semmy wellem taju researcher (ORCID 0000-0003-1563-5343) |
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| semmy kessy Tanzanian footballer, TZ (b. 1984) |
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Ly, Schilt, Afrisa, Chaieb, Bakker, Kiondo, Kramti, Phagoe, Ramoss, Resmol, Rezgui, Tuinte, Yanuar, Yusuph, Rintjap, Ririhena, Alfiyasin, Kalishoek, Oladokun, Suripatty, Kurniawan, Ngamsanith, Stumpp, Stahlhammer, Supusepa, Michel, Es, Sem, Lee, Tan, Yun, Milo, Pisa, Reis, Diaz, Taju, Tsai, Tkoa, Catur, Bukit, Kazla, Patty, Levit, Holle, Huang, Verma, Meijer, Samuel, and Christiant