Karkono Partokusumo (23 November 1915 – 5 July 2003), better known by the pen name Kamadjaja (Perfected Spelling: Kamajaya), was an Indonesian journalist and author, who rose to prominence during the Japanese occupation of the Dutch East Indies.

[5][7] When Berita Oemoem, a conservative publication headed by Soekardjo Wirjopranoto and Winarno Hendronoto, was moved from Bandung to Batavia, Kamadjaja was brought on as an editor.

Initially Kamadjaja remained in journalism, taking a position with the Japanese-established daily Asia Raya,[5] as did many of Berita Oemoem's staff.

[6] Together with Rinto Ali, Sjamsuddin Sutan Makmur [id], and Usmar Ismail, Kamadjaja established the newspaper Rakjat in Jakarta (renamed during the Japanese occupation) and wrote a column, "Bang Golok" ('Brother Machete').

[10] Later in 1948, Kamadjaja was made a titular Finance Ministry Aid in Singapore, serving under Ambassador Mukarto Notowidagdo.

Despite his title, Kamadjaja's main task was smuggling opium into Singapore, with the proceeds supporting Indonesian military and diplomatic efforts.

[11][2] Together with Tony Wen and Subeno, he arranged a route in which speedboats loaded with opium left Popoh Beach [id] near Tulungagung, East Java, and went to Singapore.

[11][2] In November 1948, Kamadjaja returned to Indonesia via Bangkok and Bukittinggi, for fear that he was being hunted by the Dutch and British police.

[15] Kamadjaja wrote a book in 1972 based on the case of "Sum Kuning", a teenage girl from Bantul, Special Region of Yogyakarta, who was put on trial after accusing several well-connected youths of raping her.

After a funeral attended by hundreds of mourners, he was buried at the Wijaya Brata Cemetery, which is dedicated to prominent members of the Taman Siswa organisation.