The Battle of Olustee or Battle of Ocean Pond was fought in Baker County, Florida on February 20, 1864, during the American Civil War. It was the largest battle fought in Florida during the war.

Baker County is a county in the U.S. state of Florida. As of the 2020 census, the population was 28,259. Its county seat is Macclenny. The county was founded in 1861 and is named for James McNair Baker, a judge and Confederate Senator.