Cognomen להב (Lahav 
, להב ) , in the entire world, is quite a rare family name. The last name להב is characteristic of British Virgin Islands, where it is quite a common surname, Israel, and New Zealand, where it is a rare surname. In absolute terms, the name is most common in Israel, the United States, and Germany. Much less frequently, להב is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lahav | Germany, Israel, United States, United Kingdom, Romania |
| להב | Israel |
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אפרים להב IL (b. 1914) |
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יוסף להב IL (b. 1933) |
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לואי להב Israeli music producer, IL (b. 1949) |
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משה להב Israeli singer, IL (b. 1965) |
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להב הלוי IL (b. 1965) |
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הגר להב IL (b. 1966) |
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גליה להב Israeli fashion designer, IL |
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| פנחס להב IL (b. 1921) |
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| אהרון להב Israeli journalist, IL (b. 1931) |
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אורי להב IL (b. 1972) |
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| מאיר להב chemist from Israel, IL (b. 1936) |
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להב שני Israeli conductor and pianist, IL (b. 1989) |
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| פנינה להב Israeli legal scholar, IL (b. 1945) |
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| אבנר להב Israeli translator, IL (b. 1947) |
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מיכל להב Israeli chess player, IL (b. 1999) |
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