Arin

• Arin, Armenia, a town in Armenia
• Arin River, a tributary of the Someşul Mare River in Romania
• Ujjain, an Indian city used as the center of ancient and medieval world maps, which was corrupted in Latin as Arin

• Arin Hanson (born 1987), American internet personality, voice actor, songwriter, rapper, animator, and cartoonist
• Arın Soğancıoğlu (born 1987), Turkish basketball player
• Arin Wright (born 1992), American soccer player
• Suha Arin (1942–2004), Turkish film director, writer, producer and educator
• Arin (singer), stage name of South Korean singer Choi Ye-won (born 1999)

• Arin (Ninjago), a character in Ninjago
• Arin language, an extinct Yeniseic language
• American Registry for Internet Numbers (ARIN), the regional internet registry for Canada, the United States, and many Caribbean and North Atlantic islands

• Arino, a village in Morkinsky District, Mari El Republic, Russia
• Ariño, a municipality located in the province of Teruel, Aragon, Spain
• Aryn (disambiguation)
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