Watershed may refer to:

• Watershed, drainage divide (non-American usage)
• Watershed, drainage basin (North American usage)
• Watershed (algorithm), an algorithm used in image processing
• Watershed area (medical), an area with overlapping blood supply
  • Watershed stroke, a stroke in a brain watershed area
• Watershed (television), a time each evening after which certain material may be shown

Main European drainage divides (red lines) separating catchments (gray regions). ... A drainage basin is the area within the drainage basin divide (blue outline), and drains the surface runoff and river discharge (green lines) of a contiguous area. ... A watershed stroke is a cerebrovascular accident caused by a lack of blood flow to the brain — that is, hypoperfusion — which can be caused by cardiac pump failure, severe narrowing of the carotid arteries, or systemic hypotension (shock). ... Watershed is a term used in the United Kingdom (as well as Canada) to describe a time in television schedules beyond which it is permissible to show television programmes which have adult content. It is known in the US as Safe Harbor. Adult content can be generally defined as having...

Music:

• Albums:
  • Watershed (Grant McLennan album)
  • Watershed (K.D. Lang album)
  • Watershed (Opeth album)

• Bands:
  • Watershed (South African band)
  • Watershed (American band)
  • Watershed (Christian band)

Watershed is a South African band featuring lead singer Craig W. Hinds. ...

See also

• List of watershed topics
• Watersheddings, former British rugby stadium

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