NHS might be:

Healthcare

• One of the four separate National Health Services in the United Kingdom, or their perceived united pub presentation.
  • National Health Service (England).
  • NHS Scotland.
  • NHS Wales.
  • Health and Care NI the health service for Northern Ireland (which does not use the names "NHS" or "National Health Service").
• National Health System, a descriptive name (also used semi-officially) for public health systems in South Africa
• Newborn Hearing Screening, the practice of testing the hearing of new-born children either by itself or as part of general newborn screening.
• Niagara Health System, a 7-hospital amalgamation in Niagara Region, Ontario

Other meanings

• National Highway System (United States)
• N-hydroxysuccinimide, a reagent used in organic synthesis
• National Honor Society, United States
• Independent Trade Unions of Croatia, or Nezavisni Hrvatski Sindikati (NHS)
• Newport Historical Society, an American historical organization
• Ninja High School, an American comic book
• National Historic Site in the United States or in Canada.

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