Cognomen הדס (Hadas 
, הדס , Hadass 
) , around the world, is a common family name. The family name הדס is characteristic of Israel, where it is quite a common surname, Ethiopia, and Hungary, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Ethiopia, Israel, and India. Likewise, הדס is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hadas | Ethiopia, Israel, Sudan, India, Poland |
| הדס | Israel |
| Hadass | Germany, Ethiopia, Israel, India, United States |
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ירדנה הדס Israeli children's author (1930-2015), IL (b. 1930) |
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ערן הדס Israeli poet, IL (b. 1950) |
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ישי הדס Israeli producer, voice over artist and political activist, IL (b. 1955) |
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| יוסף הדס Israeli diplomat, IL (b. 1928) |
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| נפתלי הדס Israeli surgeon, IL (b. 1936) |
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| גדעון הדס an Archaeologist with the Israel Antiquities Authority, IL (b. 1941) |
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רוני בר הדס Israeli singer-songwriter and musician, IL (b. 1995) |
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גיל בר הדס IL (b. 1990) |
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| חגי הדס Israeli military personnel, IL (b. 1953) |
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| הלה הדס IL (b. 1958) |
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בר, מלכה, בן דוד, בן משה, שגיא, גולן, גבאי, יוסף, פורת, לביא, נוימן, זהבי, הרוש, מזרחי, אברהם, אזולאי, ביטון, שפירא, יצחקי, סויסה, קליין, אוחיון, אלבז, בנימין, אלון, הראל, רז, טל, כץ, מור, משה, ממן, שמש, שחר, שקד, סגל, פרץ, פלג, לוי, להב, דוד, דהן, נגר, עמר, חזן, חדד, כהן, צדוק, and אסולין