Cognomen Murnu (Murnu 
, مورنو) , across the world, is a rare surname. The surname Murnu is characteristic of India, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Murnu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Murnu | India, Nigeria, United States |
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george murnu Romanian writer and academic, RO (b. 1868) |
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ary murnu Romanian illustrator and painter, 1881-1971, RO (b. 1881) |
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| ioan murnu GR (b. 1848) |
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| ion lucian murnu RO (b. 1910) |
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