Jar (disambiguation)

A jar is a type of glass container usually used to hold food.

Jar or JAR can also mean other things, such as:

 J.A.R., a song by Green Day
 JAR (file format)
 JAR (software), for data compression
 Jar, Azerbaijan
 Jar, Norway
 Jar (Pakistan), a town in the Federally Administered Tribal Areas' Bajaur Agency.
 Jars, Cher, in the French département of Cher
 Jars of Clay, a musical group
 Jewish Autonomous Region of Russia
 Joint Aviation Requirements issued by Europe's Joint Aviation Authorities
 James A. Rhodes Arena