How many martial arts are there?

How many martial arts are there?
There are MANY marital arts. Literally, martial arts refers to the arts of war, so it could include things like archery, shooting and strategy; but more usually, the term martial arts refers to hand-to-hand combat techniqes.AikidoArnisBaguazhangBjqunBandoBartitsuBataireachtBattjutsuBoxing (an Olympic sport)Brazilian Jiu-JitsuCapoeiraCatch WrestlingDambeEgyptian stick fencingEskrimaFencing (an Olympic sport)FistfightFujian White CraneGatkaGlimaGungdoHaidong GumdoHapki yusulHapkidoHung GaHwa Rang DoIaidIaijutsuJeet Kune Do (created by Bruce Lee)JdJudo (an Olympic sport)JujutsuKajukenboKalarippayattuKarateKendoKenjutsuKenpKeysiKickboxingKinomichiKrav MagaKuk Sool WonKydKyjutsuLethweiLucha libreLuta LivreMalla-yuddhaMCMAPMuay ThaiNhat NamNinjutsu (practiced by ninja)Northern Praying MantisOkinawan kobudOom Yung DoePankrationPehlwaniPencak SilatPradal SereyPuroresuSamboSanshouSavateShaolin Kung FuShippalgiShootfightingShuai JiaoShurikenjutsuSilambamSilatSjutsuSsireumSubakSumoSystema TaekkyeonTaekwondo (an Olympic sport)Tai chi chuanTang Soo DoToso Kune DoVajra MushtiVarzesh-e PahlavaniVovinamWing ChunWrestling (an Olympic sport)Wushu (a competitive form of KungFu)XingyiquanZen Ki Bo
There is no right answer to your question. For example, do you count karate as one martial art, when it is actually thousands. Since Martial Arts originally referred to the art of war, and since there are 195 countries in the world, we can safely say that there are probably at least 195 forms of Martial Arts. However, it seems that no matter where you go there are lots of variants. For example, Krav Maga which was started in the 1940's by Imi Lichtenfeld has at least a dozen variants that have spread around the world from Israel.

All this being said there are probably hundreds of main line martial arts with thousands of variants.