库克拉夫特县（Schoolcraft County, Michigan）是美国密歇根州上半岛中部的一个县，南临密歇根湖。面积4,879平方公里。根据美国2000年人口普查，共有人口8,903人。县治萨吉诺 (Saginaw)。

成立于1843年3月9日。县名纪念美国地理学家、地质学家亨利·斯库克拉夫特 (Henry Schoolcraft)。

Schoolcraft County is a county located in the Upper Peninsula of the U.S. state of Michigan. As of the 2010 census, the population was 8,485. The county seat is Manistique, which lies along the northern shore of Lake Michigan. The county is named in honor of Henry Schoolcraft, who explored the area with the expedition of Lewis Cass. The county was founded in 1843 and organized in 1876. The county is largely rural and forested, with much of the western portion of the county located within Hiawatha National Forest.