哈卡（西班牙语：Jaca）是西班牙阿拉贡自治区韦斯卡省的一座城市，位于阿拉贡河畔，邻近法国边境。总面积406平方公里，2004年总人口12,322人。

哈卡是著名度假和冬季运动胜地。****和****在哈卡举行。哈卡还曾申办1998年、2002年、2010年和2014年冬季奥林匹克运动会，但均告失败。

Jaca (Chaca in Aragonese) is a city of northeastern Spain in the province of Huesca, located near the Pyrenees and the border with France. Jaca is an ancient fort on the Aragón River, situated at the crossing of two great early medieval routes, one from Pau to Zaragoza. Jaca was the city out of which the County and Kingdom of Aragon developed It was the capital of Aragon until 1097 and also the capital of Jacetania.