Wrestling is a sport of physical engagement between two individuals, in which each wrestler strives to obtain a position of advantage over their opponent, within a given ruleset. Wrestling involves different grappling-type techniques such as clinch fighting, throws and takedowns, joint locks, pins, and other grappling holds. Many different wrestling techniques have been incorporated into martial arts, combat sports, and military systems. The sport can either be genuinely competitive or sportive entertainment (see professional wrestling).

Wrestling comes in different forms such as freestyle, Greco-Roman, judo, sambo, folkstyle, catch, submission, sumo, pehlwani, shuai jiao, and others. Wrestling first appeared in the ancient Olympic Games as an event during the 18th Olympiad in 708 BC.

There are a wide range of styles with varying rules, with both traditional historic and modern styles. The term wrestling is attested in late Old English, as wræstlunge (glossing palestram).