is a city located in Fort Bend, Harris, and Waller Counties in the U.S. state of Texas, within the Houston–Sugar Land–Baytown metropolitan area. The population was 11,775 at the 2000 census.
Katy is named for the Missouri-Kansas-Texas Railroad (commonly referred to as the "K-T Railroad", now a part of Union Pacific) that ran through Katy in the 19th century. Katy was once known as Cane Island. The name is derived from Cane Island Creek which runs just west of downtown. Cane Creek is a branch of Buffalo Bayou. The origins of the name Cane Island are believed to be from the fact that Katy was once a major sugar cane producer and rice producer. It has a festival the second weekend in October to honor and recoginize the former rice producing town.