- Afrikaans: Belg
- Albanian: belgjian (sq) m, belgjiane f
- Arabic: بِلْجِيكِيّ m (beljīkiyy), بِلْجِيكِيَّة f (beljīkiyya)
- Armenian: բելգիացի (belgiacʿi)
- Azerbaijani: belçikalı
- Basque: belgikar
- Belarusian: бельгі́ец m (bjelʹhíjec), бельгі́йка f (bjelʹhíjka)
- Bulgarian: белги́ец m (belgíec), белги́йка f (belgíjka)
- Catalan: belga (ca) m or f
- Cherokee: ᎠᏇᎵᏣᎻ (aquelitsami)
- Chinese:
- Mandarin: 比利時人/比利时人 (zh) (bǐlìshírén)
- Czech: Belgičan (cs) m, Belgičanka (cs) f
- Danish: belgier c
- Dutch: Belg (nl) m, Belgische (nl) f
- Esperanto: (♂♀, ♂) belgo, (explicitly ♂, possible word) virbelgo, (♀) belgino, (♂♀, ♂) belgiano, (♀) belgianino, (♂♀, ♂) belgujano, (♀) belgujanino
- Estonian: belglane (et)
- Faroese: belgiari m
- Finnish: belgialainen (fi)
- French: Belge (fr) m or f
- Galician: belga (gl) m or f
- Georgian: ბელგიელი (belgieli)
- German: Belgier (de) m, Belgierin (de) f
- Greek: Βέλγος (el) m (Vélgos), Βελγίδα (el) f (Velgída), Βέλγα (el) f (Vélga)
- Hawaiian: Pelekiuma
- Hebrew: בֶּלְגִּי m (bélgi)
- Hungarian: belga (hu)
- Icelandic: Belgi (is) m, Belgar m pl
- Irish: Beilgeach m
- Italian: belga (it) m or f
- Japanese: ベルギー人 (berugījin)
- Kazakh: бельгиялық (belgiälyq)
- Korean: 벨기에 사람 (belgie saram)
- Kyrgyz: бельгиялык (belʹgiyalık)
- Latvian: beļģis m, beļģietis m, beļģiete f
- Lithuanian: belgas (lt) m, belgė (lt) f
- Luxembourgish: Belschen m
- Macedonian: Белгиец m (Belgiec), Белгијка f (Belgijka)
- Marathi: बेल्जियन (beljiyan)
- Norwegian:
- Bokmål: belgier m
- Nynorsk: belgiar (nn) m
- Persian: بلژیکی (fa) (belžiki)
- Polish: Belg (pl) m pers, Belgijka (pl) f
- Portuguese: belga (pt) m or f
- Romanian: belgian (ro) m, belgiană (ro) f, belgiancă f
- Russian: бельги́ец (ru) m (belʹgíjec), бельги́йка (ru) f (belʹgíjka)
- Serbo-Croatian:
- Cyrillic: Белгија́нац m, Белгијанка f
- Roman: Belgijánac (sh) m, Belgijanka f
- Slovak: Belgičan (sk) m, Belgičanka (sk) f
- Slovene: Bélgijec (sl) m, Bélgijka f
- Spanish: belga (es) m or f
- Swahili: Mbelgiji (sw)
- Swedish: belgare (sv) m, belgiska (sv) f
- Tajik: белгиягӣ (belgiyagī)
- Telugu: బెల్జియను (beljiyanu)
- Turkish: Belçikalı (tr)
- Turkmen: belgiýaly
- Ukrainian: бельгі́єць (uk) m (belʹhíjecʹ), бельгі́йка f (belʹhíjka)
- Uzbek: belʼgiyalik
- Vietnamese: người Bỉ
- Volapük: (♂♀) Belgänan, (♂) hi-Belgänan, (♀) ji-Belgänan
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