Kuala Kubu Bharu (alternately known as Kuala Kubu Baru, Kuala Kubu Bahru or Kuala Kubu Baharu; commonly referred to as KKB), is a town in Hulu Selangor district, Selangor, Malaysia. It was built after the town of Kuala Kubu was destroyed in a flood in 1883. Kuala Kubu Bharu is located on top of a hill.