Worldwide, Boulogne (Boulogne 
, بولوني) is a very rare epicene first name. The first name Boulogne is habitual in Western Europe, particularly France, where it is a very rare unisex name. Predominantly, Boulogne is the last name as well as the forename.
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| Boulogne | Belgium, France, United States, South Africa, Netherlands |
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ide de boulogne French saint and noblewoman, FR (b. 1040) |
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| baudouin ii de boulogne Count of Boulogne (b. 1000) |
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| baldwin de boulogne Peerage person ID=102041 |
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| godefroy d'auvergne dit de boulogne, seigneur de montgascon - 11 Jan 1384/19 Aug 1385 |
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| godefroi i de la tour dit de boulogne, seigneur de montgascon - 4 Jul 1469 |
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| godefroy de boulogne, lord of carshalton |
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| marijs boulogne BE |
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