hyl

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Hyl or HYL may refer to:

• Helsingin yhteislyseo, a school in Kontula, Helsinki, Finland
• Hydroxylysine, an amino acid
• HYL, the IATA code for Hollis Seaplane Base, Alaska, US
• HYL, the National Rail code for Hayle railway station, Cornwall, UK
• Hyl (unit) or metric slug, a unit of mass
• Nils Hylander (1904–1970), Swedish botanist, author abbreviation