Bigneck, also known as Big Neck, is an unincorporated community in Keene Township, Adams County, Illinois, United States.

Bigneck is located 7.7 miles (12.4 km) west-northwest of Golden.

[1] The community is served by Illinois Route 61.

[3] A. Otis Arnold (1878–1941), Illinois businessman and politician, was born near Bigneck, in Adams County.

This Adams County, Illinois location article is a stub.