Polycystic ovary syndrome, or PCOS, is an endocrine disorder.
PCOS may also refer to:
Biology and medicine
- Palliative Care Outcome Scale, a pain scale
Computer operating systems
- PC OS, the operating system for a personal computer
- PC/OS, or Black Lab Linux, a Linux distribution
- Olivetti's PCOS, such as on the Olivetti M20
Other meanings
- Comunitarian Party Option Seven (Spanish: Partido Comunitario Opción Siete), a political party in Colombia
- Precinct count optical scan, a voting machine
- Philharmonic Chamber Orchestra Society, now The Philharmonic Orchestra, Singapore
See also
- PC DOS, a variant of the MS-DOS operating system for IBM PCs
- PCO (disambiguation)