Hoc may refer to:

  • Hellenic Olympic Committee, one of the oldest National Olympic Committees.
  • Hoc (Beowulf), a Danish King from Beowulf.
  • Hoc (programming language), a calculator and programming language.
  • Hypertrophic (Obstructive) cardiomyopathy, but HCM is the more common and accepted acronym for that condition.
  • House of Commons
  • Hooked on Classics

Hoc is also the Latin word for this, used in English especially in the phrase ad hoc.