HCY
HCY may refer to:
Homocysteine, an amino acid
Hôpital Central de Yaoundé, a Cameroonian hospital
Tsuen Wan Public Ho Chuen Yiu Memorial College, a Hong Kong secondary school
Helios Airways, a Cypriot airline (1998–2006; ICAO:HCY)
Pale Mono
- 2026-01-28T00:00:00.000000Z
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