Abdul Aziz bin Ishak (1915–1999) was a Malaysian freedom fighter, politician and journalist. Aziz was, in fact, the only member of the pre-war Kesatuan Melayu Muda (KMM) to have served in the 1955 and post-Merdeka Cabinets under Tunku Abdul Rahman. Between 1955 and 1963, he was the Minister for Agriculture and Co-operatives, where his efforts in rural development to improve the lives of padi farmers and fishermen were important although less known compared with similar efforts undertaken by the Rural Development Ministry.

Aziz remains an enigma unlike his brother Yusof Ishak who was well known both as a journalist and the founder of Utusan Melayu and as the first President of Singapore after the separation with Malaysia in 1965.

Born in 1915 the state of Perak, which was then part of the Federated Malay States, Aziz Ishak is the descendant of prominent Sumatran Malay Datuk Jannatun who migrated to Penang in 1759 or 15 years before Francis Light arrived on the island.

Aziz is of Minangkabau descent from his father's side while his mother is a native of Langkat regency in North Sumatra province of Indonesia.^[2] His brother is Yusof Ishak was the first President of Singapore and his face adorns the current paper currency of Singapore that is in circulation since 1999 and another brother was Abdul Rahim Ishak, a fellow politician turned diplomat.

Denied entry into the Malay College Kuala Kangsar because of his non-aristocratic background, Aziz attended Victoria Bridge School (now Victoria School) and Raffles Institution in Singapore.

His time at Raffles was an important learning experience. He mixed well with students of various ethnic backgrounds and was the School Captain for two years, perhaps the only Malay to have held this distinction.

At Raffles, he formed a Malay literary association with friends including Hamid Jumaat, Tun Sardon Jubir and Ahmad Ibrahim and contributed articles on the Malays and their plight to Warta Malaya, a leading Malay newspaper in Singapore. This was done through his brother Yusof who was already working as a journalist.

Aziz's political involvement was varied. Before 1942, he was a member of the KMM and after 1945 sympathised with the PKMM. However, in 1950 he joined UMNO when it was still led by Datuk Onn Jaafar although his idea of full independence for Malaya at this time was neither acceptable to Onn nor the Tunku Abdul Rahman.

When the Independence of Malaya Party was formed in 1951 by Onn, Aziz became deputy chairman of the IMP's Kuala Lumpur branch and contested the 1952 elections in Sentul but lost to the Alliance candidate.

In the same year, he left the IMP due to personal differences with Onn. Upon the Tunku's encouragement, he rejoined UMNO in April 1953. Aziz then held important positions within Umno and the Alliance. In 1953, he was appointed to the Alliance Round Table Conference that called for an early general election in Malaya.

In 1955, he was appointed head of Selangor UMNO and chairman of the Selangor Alliance. He was very much involved in drafting the 1955 Alliance manifesto for the general election held that year; the manifesto covered issues such as Malay language, agriculture, economy, education, and finance.

In the elections, he stood on the Alliance ticket and won in Kuala Langat. He faced a Parti Negara candidate, a former schoolmate. Despite official backing for Parti Negara, including from the colonial police force, the Alliance went on to win the first national elections, taking 51 of the 52 seats.

Earlier in September 1954, Aziz had campaigned actively with the Tunku in the Terengganu election which was won by the Alliance despite open support for Parti Negara by the British.

Aziz was appointed Minister of Agriculture and co-operatives, a post he kept until 1963. Tun Abdul Razak took note of Aziz's useful work among the rural folk, especially the setting up of co-operatives to eliminate the exploitation by middlemen.

The year 1955 saw a growing rift between Aziz with his Cabinet colleagues, notably the Tunku and Abdul Razak who was overall in charge of rural development. Aziz's blunt criticisms of ministers, such as the wearing of uniforms, did not endear him well with the Tunku. He was also unhappy at the Alliance's neglect of the 1955 manifesto due to the exuberant push for political independence.

In his memoirs, Aziz claimed that the 1955 Cabinet was beset with policy differences on various issues, including the replacement of expatriate British officers with Malayans or Malayanisation. Aziz was equally passionate on press freedom that he claimed had been eroded after 1955.

Aziz resigned from the Cabinet in 1963 after he was transferred to the Health Ministry. This was due to irreconcilable differences with the Tunku and other Cabinet colleagues on strategies for rural development.^[3] There was no place for a socialist in a Cabinet that was pursuing capitalistic policies and firmly committed to upholding a free-market economy. Soon after, he was expelled from UMNO.

Aziz eventually went on to form the short lived National Convention Party that joined the left wing Malayan Peoples' Socialist Front together with the Labour Party of Malaya and Partai Ra'ayat to contest the 1964 general elections.^[3]

In 1963, soon after the outbreak of the Konfrontasi between Malaysia and Indonesia, the Alliance government began yet another massive round up of politicians and activists among the opposition under the Internal Security Act. Among those arrested and detained were Ahmad Boestaman, Ishak Haji Muhammad, Abdul Aziz Ishak (head of GERAM), Datuk Kampo Radjo (later the president of PRM), Tan Kai Hee, Tan Hock Hin, Dr. Rajakumar, Hasnul Hadi, Tajuddin Kahar and hundreds of others.

Aziz was accused of being a traitor and collaborating with Indonesian agents to form a government-in-exile, a charge that he denied. He was detained between 1965 and 1966 under the law.

In his book Special Guest: The Detention in Malaysia of an Ex-Cabinet Minister he describes in detail the irreconcilable differences with the Tunku and the events that led to his resignation, subsequent detention and release. The book was banned and only allowed restricted access in university libraries.

His earlier biographical account Katak Keluar dari Bawah Tempurong stopped at 1955 and his subsequent appointment as minister. As a result, not much is known about Aziz Ishak and his role in the struggle for independence through the newspaper Utusan Melayu and in the political arena when he was head of Selangor UMNO and Selangor Alliance in the mid-1950s when the political bargaining among the Alliance partners were struck.

He turned down all subsequent offers of state and federal awards.