Group 3 may refer to:
Group 3 element, chemical element classification Group 3 (motorsport), FIA classification of cars used in auto racing and rallying Group 3, the third tier of races in worldwide Thoroughbred horse racing Group 3 image format, Group 3 & Group 4 are digital technical standard for compressing and sending faxes Group 3 Rugby League, a rugby competition in Australia Group 3 Films, a British film production organisation funded by the National Film Finance Corporation
See also
C group (disambiguation) Group C (disambiguation) Group (disambiguation) 3 (disambiguation)