HOL

Hol or HOL can be

 People 
 Hol (surname)
 K'inich Popol Hol, 5th-century Mayan king

Places
 Hol, Buskerud, a municipality in Norway
 Hol, Tjeldsund in Tjeldsund municipality, Troms og Finnmark
 Hol, Nordland, Lofoten in Nordland
 Hol, Ludhiana, a village in India

Stations
 Hollywood station (Florida) (station code: HOL), USA
 Holmesglen railway station (station code: HOL), Malvern East, Melbourne, Victoria, Australia
 Holsworthy railway station, Sydney (station code: HOL), NSW, Australia
 Holton Heath railway station (station code: HOL), England, UK

Science and technology
 HOL (proof assistant), theorem proving systems
 Head-of-line blocking in computer networking
 Higher-order logic, a branch of symbolic logic
 Holonomy group in differential geometry

Sports and games
 Hol (role-playing game)
 Hol IL, a sports club in Buskerud county
 Hollingworth Lake Rowing Club (prefix code: HOL)
 Holdsworth (cycling team) (UCI code HOL)
 HOL, pre-1992 code for Netherlands at the Olympics

Other uses
 Hands On Learning Australia, a charity
 Hellas On-Line, a Greek Internet service provider
 Holiday Airlines (US airline) (ICAO airline code HOL)
 Holu language (ISO 639 code hol)
 tlhIngan Hol, fictional Klingon language
 Netherlands, ITU code