Kuala Kubu Bharu (Chinese: 新古毛, alternately known as Kuala Kubu Baru, Kuala Kubu Bahru or Kuala Kubu Baharu; abbreviated to KKB), is the district capital of Hulu Selangor District, Selangor, Malaysia. It was built after the town of Kuala Kubu was found to be unfit to continue as a town due to its severe flood problem, particularly when it was completely destroyed in a flood disaster in 1883 (bharu is a Malay word meaning new). Kuala Kubu Bharu is located on the foothill of the famous Titiwangsa Mountain Range and well known as one of the vital water catchment area for the state of Selangor.