- Ati City is a second-class city in the province of Negros Occidental, Philippines. It is located in the western part of the province and is approximately 134 kilometers away from Bacolod City, the provincial capital. With a population of around 54,438 people as of 2020, Ati City is known for its rich cultural heritage and vibrant festivals, such as the Ati-Atihan Festival. The city is also blessed with natural attractions like white sand beaches and diving spots, making it a popular tourist destination in the region.