La Castellana is a 1st class municipality in the province of Negros Occidental in Region VI or Western Visayas which belongs to the Visayas group of islands. It is seated about 40 km south-southeast of Bacolod City, the provincial capital and about 523 km south-southeast of Manila, the Philippine capital. The municipality was named after the famous "Paseo de La Castellana" in Madrid, Spain.
La Castellana is bounded on the north by La Carlota City, on the south by Isabela and Moises Padilla, on the west by Hinigaran and Pontevedra, and on the east by the provincial boundaries of Negros Occidental and Negros Oriental. This municipality can be reached from Bacolod City in one and a half hour using public utility vehicle such as jeepneys and buses and about an hour by private car.
Administratively the Municipality of La Castellana is subdivided into 13 barangays. One forms the center of the city wheras the other 12 are in the outlying areas. Some of them are even several kilometers away from the center of the Municipality. The most populous are Talaptap, Mansalanao, Puso, Lalagsan, Biaknabato, Masulog, Nato, Cabagnaan, Camandag, Manghanoy, Cabacungan, Sag-Ang, Robles (Pob.).
Among the bigger cities and municipalities in the neighborhood of La Castellana there are City Of Talisay (Cebu) 89 km east, City Of Kabankalan 43 km south-south-west, Iloilo City (Iloilo) 65 km north-west, Mandaue City (Cebu) 100 km east, Bacolod City 40 km north-west, Cebu City (Cebu) 92 km east, Toledo City (Cebu) 69 km east, Bago City 31 km north-west, San Carlos City 32 km east-north-east as well as 77 km north-east of La Castellana the municipality Sagay City.