YL may refer to:

See also

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  • The suffix -yl, used in organic chemistry to form names of radicals, either separate species (called free radicals) or chemically bonded parts of molecules (called moieties).
  • YL v Birmingham CC, a 2007 UK constitutional law case, concerning judicial review.
  • Young Ladies Radio League, referring in telegraphy and amateur radio to a female operator of any age