达奇斯县（Dutchess County, New York）是美国纽约州东部的一个县，西傍哈得逊河，东邻康乃狄克州。面积2,138平方公里。根据美国2000年人口普查，共有人口280,150。县治波启浦夕（Poughkeepsie）。

成立于1683年，是纽约省最早的十二个县之一。县名纪念当时的约克公爵（后来的英王詹姆斯二世）夫人、摩德纳的玛莉（Mary of Modena）。县名当中的「t」乃系当时居于纽约上州的荷兰移民之误，以及当时英语拼写法不如今日严谨的结果。

Dutchess County is a county located in the south east corner of the U.S. state of New York. As of the 2010 census, the population was 297,488. The county seat is Poughkeepsie. The county was created in 1683 and later organized in 1713.

Dutchess County is part of the New York-Newark-Jersey City, NY-NJ-PA Metropolitan Statistical Area. It is located in the Mid-Hudson Region of the Hudson Valley.