ILS, a law school in Pune, India

Integrated Library System

Instrument Landing System, a precise navigation system for aircraft, used under instrument flight rules

Integrated Logistics Support

Israeli new sheqel, the currency of Israel

International Launch Services

Ils, a French horror film

International Life Saving Federation

Internet Locator Service, used for locating user's IP address in Voice over IP

Ils, electronic music producer and DJ

International Lyrics Server

Indirect Least Squares, a statistics technique

Institute for Laser Science, department of the University of Electro Communications, Japan