格拉夫顿县（Grafton County, New Hampshire）是美国新罕布什尔州西部的一个县，西邻佛蒙特州。面积4,533平方公里。根据美国2000年人口普查，共有人口81,743。县治黑弗里尔（传统上县治在镇内的坞兹维）。

成立于1769年。县名纪念英国首相奥古斯都·亨利·菲茨罗伊，第三世格拉夫顿公爵 (Augustus Henry FitzRoy, 3rd Duke of Grafton)。

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贝尔纳普县 | 卡罗尔县 | 切希尔县 | 库斯县 | 格拉夫顿县 | 希尔斯伯勒县 | 梅里马克县 | 罗金厄姆县 | 斯特拉福德县 | 沙利文县

Grafton County is a county located in the state of New Hampshire, in the United States. As of the 2010 census, the population was 89,118. Its county seat is North Haverhill, which is a village within the town of Haverhill. Until 1972, the county courthouse and other offices were located in downtown Woodsville, a larger village within the town of Haverhill.