Abdoe'lxarim M. S. (c. 1901 – 25 November 1960), who was born Abdoel Karim bin Moehamad Soetan, was a journalist and a Communist Party of Indonesia leader.

[4] The objective of the reassignment to distant Kupang in the Eastern Indies may have been to isolate him from politics; he decided to resign his government post and returned to Sumatra and became the NIP commissioner there.

[2] In that role he attended the nationalist Sumatran Unity Congress (Dutch: Soematraansch Eenheidscongres, Malay: Congres Persatoean Soematera) in Padang in July 1922.

[9][10] In 1923–4 he was editor-in-chief of a tri-monthly magazine named Oetoesan Ra'jat (herald of the people), a revolutionary NIP publication which was published in Langsa.

[13] Because of his high profile and his attempts to hold propaganda meetings around Aceh in 1924, he was ordered to stay in Langsa or face arrest, and was regularly followed by police detectives.

[14] In 1925 he was arrested by local police in Aceh after receiving a package from party leaders in Weltevreden (Batavia) and leaving Langsa to conceal it; he was detained for several months.

[2] In 1934 he attempted to receive the film he had made in Boven-Digoel by mail; it had been developed by a company in Surabaya and shipped to him in Langsa where it was intercepted by authorities and sent back to the Attorney General's office in Batavia instead.

[2] After the outbreak of World War II, Abdoe'lxarim, who had clandestine contacts with the Japanese consulate in Medan, was arrested by the Dutch and sent to an internment camp in Java.

[33] After the arrival of the English and the Dutch, he continued to organize supplies for Indonesians who had been enlisted with the Japanese via BOMPA, and eventually reorganized many of them into clandestine pro-republic (anti-Dutch) militias or Pemuda groups.

[36] Due to his level of organization, his rhetorical skills, and his reputation as a leader from the 1920s who had been interned, he became an important figure among the pro-independence forces in Sumatra and the main republican notable in Medan.

[38] This group did not at first have any connection with the Communist Party in Java; Abdoe'lxarim became the chairman, Luat Siregar became vice-chair and Nathar Zainuddin became an assistant at large.

[39] After the end of the Indonesian National Revolution in 1949, he remained in Medan and was appointed as military advisor to Alexander Evert Kawilarang, security commander in North Sumatra; his son Nip Xarim became a military commander in the Indonesian National Armed Forces[40] His role declined in the Communist Party, although he was detained for a time in the August 1951 mass arrests.