OL is an abbreviation for:

  • Lebanon after the ICAO code
  • Microsoft Outlook for Windows and Macintosh as well as the former Microsoft Entourage for Mac OS are popular Personal Information Manager ( PIM) by Microsoft
  • Upper Lusatia, a region that largely belongs to Saxony, and to a lesser extent Poland and Brandenburg
  • Provides overall direction, a catenary, the trolleys and buses while driving with electricity
  • First lieutenant, military ranks of the armed forces, as well as in the Austrian Army and the Swiss Army
  • Office Lady, a Japanese neologism, and identified in Japan a typically younger female office workers
  • OL ( cartoonist ), OL, civil Olaf Schwarzenbach, a German cartoonist
  • Olympique Lyon, a French football club
  • Orienteering, a sport run
  • The post code area Oldham ( as the initial letters of a postcode from the UK )
  • Germany: county-level city of Oldenburg ( Oldenburg) and the district of Oldenburg
  • Netherlands: semi-trailer
  • Czech Republic: Olomouc, German: Olomouc ( discontinued)

-ol stands for:

  • Alcohols as a suffix in the nomenclature (chemistry)
  • Disambiguation
  • Abbreviation