John Humphrey Noyes was an American preacher and social reformer best known for founding the Oneida Community, a utopian society established in the mid-19th century in New York. Noyes envisioned a community based on shared property, communal living, and a unique form of complex marriage, where all members could engage in relationships without traditional marital constraints. His ideas challenged the social norms of the time and contributed to the larger movement of utopian communities seeking to create ideal societies.