BYY

{{wiktionary|អព្យយ|អព្យយៈ}}

BYY or Byy can refer to:

• ISO 639:byy or "Buya", a spurious ISO 639 code that may refer to Buyu language, spoken in the Democratic Republic of the Congo
• Bay City Municipal Airport, an airport in Bay City, Texas, U.S., by FAA LID code
• Bayleyite, a yellow, uranium-containing mineral, by International Mineralogical Association symbol
• Byree railway station, a train station in Odisha state, India
• Biyang County, an administrative division of Zhumadian, Henan, China; see List of administrative divisions of Henan

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