Westfield is a village in Marquette County, Wisconsin, United States. The population was 1,254 at the 2010 census. The village is located mostly within the Town of Westfield. A small portion extends east into the adjacent Town of Harris. The Marquette County fairgrounds is located within the village limits on the south side.

Marquette County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 15,592. Its county seat is Montello. The county was created in 1836 from the Wisconsin Territory and organized in 1848.