FLV (Flash Video) - ôîðìàò ôàéë³â äëÿ ïåðåäà÷³ â³äåî â ³íòåðíåò³. ³í âèêîðèñòîâóºòüñÿ íà YouTube, RuTube, Âêîíòàêòå òà ³íøèõ ñåðâ³ñàõ â³äåîõîñòèíãó. Çà äîïîìîãîþ FLV ìîæíà â³äòâîðþâàòè ÿê ïîòîêîâå â³äåî, òàê ³ ëîêàëüí³ ôàéëè. Adobe Flash Player ðîçïîâñþäæóºòüñÿ áåçêîøòîâíî â ÿêîñò³ ïëàã³íà äëÿ ð³çíèõ áðàóçåð³â. Êð³ì òîãî, ôîðìàò FLV ï³äòðèìóþòü áàãàòî ñó÷àñíèõ â³äåîïðîãðàâà÷³.