利勒诺县（Leelanau County, Michigan）是美国密歇根州下半岛西北部的一个县，西临密歇根湖。面积6,559平方公里。根据美国2000年人口普查估计，共有人口21,119人。县治利兰（Leland）。

成立于1840年。县名是美国地理学家、地质学家亨利·斯库克拉夫特（Henry Schoolcraft）创造的词语。

Leelanau County (/ˈliːlənɔː/ LEE-lə-naw) is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 21,708. The county seat was until recently the unincorporated community of Leland. On August 3, 2004, county voters approved a proposal to move the county seat to Suttons Bay Township, closer to the county's geographic center. In 2008, the county offices completed their move to a new government center built on 45 acres (180,000 m²) of county-owned land, one mile east of the unincorporated village of Lake Leelanau, where a new county law enforcement center was completed.