Last name Musu (Must 
, Musu 
, Mozo 
) , in all the world, is a common surname. The family name Musu is habitual in Estonia, where it is quite a common surname, Malta, and Peru. Measured by absolute frequency, it is the most numerous in Mexico, Philippines, and Peru. Likewise, Musu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Must | India, Spain, Indonesia, Mexico, Algeria |
| Musu | India, Spain, Indonesia, Philippines, Italy |
| Mozo | India, Mexico, Philippines, Colombia, Peru |
| มุสุ | Thailand |
|
marisa musu Italian journalist and politician, IT (b. 1925) |
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| antonio musu Italian film producer and director (1916-1979), IT (b. 1916) |
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| ignazio musu Italian economist (1941-), IT (b. 1941) |
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| luigina musu researcher |
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| mario musu researcher |
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| costanza musu doctoral candidate at the London School of Economics and Political Science |
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| musu davide researcher |
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| raimondo musu |
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| bastianina musu martini IT |
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| musu bakoto sawo GM (b. 1990) |
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