Cognomen Arcu (Arcu 
) , globally, is a rare family name. The last name Arcu is characteristic of Romania, where it is a rare surname, Italy, where it is an extremely rare surname, and Spain. Measured by absolute frequency, this name is the most popular in Romania, Italy, and the United States. Also, Arcu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Arcu | Myanmar, Italy, Spain, India, Romania |
|
constantin arcu Romanian writer, RO (b. 1956) |
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| ariana arcu Romanian musician, RO (b. 1953) |
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| valentin arcu |
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