Tan Sri Tengku Razaleigh bin Tengku Mohd Hamzah is a major Malaysian political figure from the state of Kelantan, and a former Finance Minister. He is an uncle of the current Raja Perempuan of Kelantan. Tengku is a Malay hereditary title usually translated as prince. He is fondly known as Ku Li, derived from the last syllables of Tengku Razaleigh: this is a common kind of contraction in the dialect of Kelantan.

He was the Malaysian Finance Minister, the Trade and Industry minister, the former chairman of the World Bank, former chairman of Asian Development Bank, former chairman of Islamic Development Bank and the founder and former chairman of Malaysian oil company, Petronas. He is now the longest-serving member of parliament in Malaysia followed by Abdul Taib Mahmud.

Razaleigh is energetic and humorous he likes to cook. Tengku Razaleigh continues to be involved in politics until today and has been serving his constituency since 1969 without ever losing in a General Election, one of the few politicians who can boast of this privilege.