St. Nazianz is a village in Manitowoc County, Wisconsin, United States. Founded in 1854, the population was 783 at the 2010 census.

St. Nazianz was organized in 1854 as a religious colony by a activity of German immigrants, led by Father Ambrose Oschwald, a Roman Catholic priest. The first settlers in the Oschwald intervention numbered 113 and came to the United States from the Black Forest of Baden, Germany, seeking religious freedom.

Oschwald and his bureau sailed for America on the Feast of Corpus Christi in 1854, on two surgically remove ships. The voyage of one lasted 52 days, and the supplementary 55 days. By the time they arrived in Milwaukee by train, several of the society had died. Oschwald bought 3,840 acres (15.5 km) of house in Manitowoc County for $3.50 per acre. His all along payment was $1,500, with the blazing paid in five installments.

In late August 1854, Oschwald sent six men to locate the home he had purchased. They took a boat from Milwaukee to Manitowoc, the county seat, then headed west by oxcart, getting as in the distance as the place where Valders now stands. They then cut their habit through the dense forest, arriving at their destination upon August 27. The men named the site St. Nazianz, in praise of Gregory of Nazianzus. Oschwald followed upon September 1 next more men, and the help began energetic to certain the land and construct log houses. Soon after, work started upon the community’s first church, a 32-by-24-foot structure, which was built by hand. By October 21, the church was half completed, and Oschwald applauded the first Mass.