Helena is an unincorporated community in the town of Arena in Iowa County, Wisconsin, United States. In the 19th century Helena was a village that played an important role in the manufacture and shipping of lead shot. The buildings of Helena played a key role in the Black Hawk War of 1832, despite being abandoned at the time.

Tower Hill State Park is a state park of Wisconsin, United States, which contains the reconstructed Helena Shot Tower. The original shot tower was completed in 1832 and manufactured lead shot until 1860. It was added to the National Register of Historic Places in 1973. The park abuts the Wisconsin River and is bordered by state-owned land comprising the Lower Wisconsin State Riverway.