纽威哥县 (Newaygo County, Michigan)是美国密歇根州西部的一个县。面积2,231平方公里。根据美国2000年人口普查，共有人口47,874人。县治怀特克劳德 (White Cloud)。

成立于1840年4月1日。县名来源有二说：一说纪念签署《萨吉诺条约》的奥吉比瓦族领袖；另一说指其来自印第安语，意思是「水源丰富」)。

Newaygo County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 48,460. The county seat is White Cloud. The county was created in 1840 and organized in 1851. It was either named for an Ojibwe leader who signed the Saginaw Treaty of 1819 or for a Native American word meaning "much water".