Louisa may refer to:
Louisa is a given name.
The Louisa was an American merchant ship that gained fame in 1800 while sailing as a privateer out of Philadelphia, Pennsylvania, during Quasi-War with France.
The owners of the Louisa obtained a letter of marque that authorized her captain to act against French merchant shipping during the war. She was armed with twelve six-pound guns and manned by a crew of thirty men (including officers).
In August 1800 she was attacked off Gibraltar by several French privateers that sailed out of Algeciras, in North Africa. Her captain, Thomas Hoggard (Thomas Haggard), was wounded and taken below to his cabin. However, the Louisa fought off the attack, and Hoggard was taken ashore at Gibraltar, where he subsequently died.
The USS Haggard (DD-555) was named in honor of the bravery of the Louisa's captain and crew in the action off of Gibraltar.
Louisa (originally named Louisa Court House) is a town in Louisa County, Virginia, United States. The population was 1,401 at the 2000 census. It is the county seat of Louisa County.
Bloomington, Boxley Place, the Louisa County Courthouse (Louisa, Virginia), and Louisa High School are listed on the National Register of Historic Places.
Louisa is located at 38°1′27″N 78°0′6″W / 38.02417°N 78.00167°W / 38.02417; -78.00167 (38.024057, -78.001584).
According to the United States Census Bureau, the city has a total area of 1.8 square miles (4.7 km²), of which 1.8 square miles (4.7 km²) is land and 0.55% is water.
As of the census of 2000, there were 1,401 people, 584 households, and 331 families residing in the town. The population density was 766.8 people per square mile (295.6/km²). There were 620 housing units at an average density of 339.4 per square mile (130.8/km²). The racial makeup of the town was 66.81% White, 29.48% African American, 0.79% Native American, 0.71% Asian, 0.79% from other races, and 1.43% from two or more races. Hispanic or Latino of any race were 1.43% of the population.