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, and the guest house, now named Seri Negara (1913).

Sir Frank Athelstane Swettenham was a British colonial administrator who became the first Resident general of the Federated Malay States, which brought the Malay states of Selangor, Perak, Negeri Sembilan and Pahang together under the administration of a Resident-General based in Kuala Lumpur. He served from 1 July 1896 to 4 November 1901. He was also an amateur painter, photographer and antique collector.