Silay City is a 3rd class city in the province of Negros Occidental, Philippines. According to the August 1, 2007 census, it had a total population of 120,365 people. It has a sizable commercial and fishing port and is the site of the new Bacolod-Silay International Airport, which replaced the Bacolod City Domestic Airport.

Silay is often referred to as the "Paris of Negros" due to its artists, cultural shows and large collection of perfectly preserved heritage houses. More than thirty of these houses have been declared as historical landmarks. Silay is the second Philippine city to have been declared a museum city, next to Vigan in Ilocos Sur.^{[citation needed]}

The appellation Silay is derived from the name of a tree which grew abundantly in the area. The Kansilay is the city's official tree.

A local legend tells of how Silay City got its name. It is said that in the days of the datus and rajahs, there once lived a princess named Kansilay. An attack on the settlement by pirates was thwarted when the princess bravely led the people in the village's defense. The fight was furious and the princess fought like a seasoned warrior. Murals that used to grace some of the city's public buildings depict her as a fierce fighter wielding a huge talibong, a short native single-edged sword. The pirates were routed, but at the cost of the princess' life. Her paramour arrived in time to see her die. In grief, the people lovingly buried her. To their surprise, a tree grew right over her grave, the first Kansilay tree, a final gift from the brave princess.