Surname Roosi (Roosi 
) , globally, is a rare cognomen. The last name Roosi is habitual in Estonia, where it is quite a common surname, Sweden, where it is a rare surname, and Algeria. In absolute terms, it is the most numerous in Estonia, Algeria, and India. Also, Roosi is the forename as well as the last name.
| enn roosi (b. 1939) |
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| enn roosi Estonian teacher and local politician, EE (b. 1958) |
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