查尔达什（查达斯、恰尔达什、夏德西，匈牙利语：Csárdás，发音为 char'dash，源自 csárda，意为客栈），是匈牙利民俗舞蹈。起源于马札尔人及吉普赛人。

查尔达什源自18世纪时的verbunkos，起初为匈牙利陆军征兵者所使用的舞蹈音乐。它的特色是节奏的变化：慢与快。以慢节奏（lassú）开始，结束于快节奏（friss）。另外有其他种类的节奏变化，称为ritka csárdás、sürü csárdás、szökös csárdás。音乐节拍有2/4拍或4/4拍。

舞者包含男与女。女舞者着传统宽裙，通常是红色的裙子。当女舞者旋转时，宽裙会形成别具特色的形状。

Csárdás (/ˈtʃɑːrdæʃ, ˈzɑːrdəs/, US /ˈtʃɑːrdɑːʃ/; Hungarian: [ˈtʃaːrdaːʃ]), often seen with the archaic spelling Czárdás, is a traditional Hungarian folk dance, the name derived from csárda (old Hungarian term for tavern). It originated in Hungary and was popularized by Romani music (Cigány) bands in Hungary and neighboring lands of Serbia, Slovakia, Slovenia, Burgenland, Croatia, Ukraine, Russia, Poland, Transylvania and Moravia, as well as among the Banat Bulgarians, including those in Bulgaria.