Henry County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 27,662. Its county seat is Napoleon. The county was created in 1820 and later organized in 1834. It is named for American Founding Father Patrick Henry, the Virginian famous for his "give me liberty, or give me death!" speech.

Napoleon is a city in and the county seat of Henry County, Ohio, United States, along the Maumee River 44 miles (71 km) southwest of Toledo. As of the 2020 census, the city had a total population of 8,862.