Surname ארז (Erez 
, ארז , Eres ) , all around the world, is a common cognomen. The last name ארז is habitual in Israel, where it is a common surname, Turkey, where it is quite a rare surname, and Bosnia and Herzegovina. Measured by absolute frequency, this name is the most popular in Israel, Turkey, and Philippines. Likewise, ארז is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Eres, Erez | Turkey, Israel, China, United States, Philippines |
| ארז | Israel |
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יעקב ארז Israeli military officer, IL (b. 1936) |
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חיים ארז IL (b. 1935) |
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עודד ארז IL (b. 1936) |
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| יהודה ארז Israeli writer, IL (b. 1900) |
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ראובן ארז Israeli singer, IL (b. 1955) |
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עופר ארז IL (b. 1955) |
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| גדעון ארז Israeli physicist, IL (b. 1929) |
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גיא ארז singer-songwriter, IL |
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עמית ארז Israeli singer-songwriter, IL (b. 1980) |
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| דני ארז Israeli basketball player, IL (b. 1933) |
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| יעקב ארז Israeli journalist, IL (b. 1939) |
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| מרים ארז professor of industrial engineering and management, Israel Prize laureate, IL (b. 1943) |
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| רן ארז IL (b. 1942) |
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| נעמה ארז Israeli writer, IL (b. 1952) |
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| אלברט ארז IL (b. 1945) |
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