The Carcosa Seri Negara is a residence located on two adjacent hills inside the Perdana Botanical Gardens, Kuala Lumpur, Malaysia. Originally built as the official residence and guest house of the British High Commissioner in Malaya, it is now owned by the Government of Malaysia. The name is a composite of the two colonial mansions located on the compound: the residence, named Carcosa (completed in 1898), and the guest house, now named Seri Negara (1913).