Niceville Senior High School (NHS) is a public high school in the city of Niceville, Florida. It is ranked as the top high school within its high-performing Okaloosa County School District. In 1996, NHS was selected as one of 226 secondary schools to be designated as a Blue Ribbon School of Excellence. NHS was also named a New American High School in 1999, one of only 13 in the nation to earn that honor that year. The State of Florida Department of Education rated the school an A+ in 2001, 2002, 2003, and 2005.

Niceville is a city in Okaloosa County, Florida, United States, located near Eglin Air Force Base on Boggy Bayou that opens into Choctawhatchee Bay. It is part of the Crestview–Fort Walton Beach–Destin, Florida Metropolitan Statistical Area. The population was 15,772 at the 2020 census, up from 12,749 at the 2010 census.