ICL
IKL is an abbreviation for:
- In the head localization , a special case of acoustic localization by a listener
- Ingenieurkontor Lübeck , design office for the German post-war submarines
- Inspection of the concentration camps , central administrative and management authority for the National Socialist concentration camps
- Isänmaallinen kansanliike , see Patriotic People's Movement , a former Finnish fascist party