Ill or ill may refer to: * Ill (France), a river in Alsace, France, tributary of the Rhine *

Ill (Vorarlberg) The Ill (all capitals: ILL) is a tributary of the Rhine in the western Austrian state of Vorarlberg. It flows from the northern slopes of the Silvretta mountain range and then runs north-west through Vorarlberg. The Ill passes through the M ...

, a river in Voralberg, Austria, tributary of the Rhine *

Ill (Saarland) Ill is a river of Saarland, Germany. It flows through Eppelborn, and discharges into the Theel near Lebach. See also *List of rivers of Saarland A list of rivers of Saarland, Germany: B *Bickenalb * Bist * Blies * Bos E * Ellbach *Erbach ...

, a river of Saarland, Germany, tributary of the Theel *

Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...

(traditionally abbreviated: Ill.), a state in the midwestern region of the United States *

Institut Laue–Langevin The Institut Laue–Langevin (ILL) is an internationally financed scientific facility, situated on the Polygone Scientifique in Grenoble, France. It is one of the world centres for research using neutrons. Founded in 1967 and honouring the ph ...

, a research centre in Grenoble, France * Illness, a generally-used synonym for

disease A disease is a particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not immediately due to any external injury. Diseases are often known to be medical conditions that a ...

Koji Nakamura is a Japanese musician who is most famous for being the lead singer/songwriter in the Japanese band Supercar.
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(recording under the name iLL), a Japanese musician *

Tommy Ill Tommy Ill is a Wellington, New Zealand based rapper. Tommy Ill is one man, Tom Young, though the live band has a revolving cast of members: Kelvin Neal, Buck Beauchamp, James Beavis and Brian Hainsworth. Tommy's music has a reputation for being ...

, Wellington in New Zealand based rapper *

Interlibrary loan Interlibrary loan (abbreviated ILL, and sometimes called interloan, interlending, document delivery, document supply, or interlibrary services, abbreviated ILS) is a service where patrons of one library can borrow materials and receive photocopies ...