Djuanda Kartawidjaja (EYD: Juanda Kartawijaya; 14 January 1911 – 7 November 1963), more commonly referred to mononymously as Djuanda, was an Indonesian politician and technocrat who held various positions during the presidency of Sukarno, most notably as prime minister of Indonesia and a cabinet minister in several cabinets.

Born into a noble ethnic Sundanese family, he graduated in engineering at the Technische Hoogeschool te Bandoeng in Bandung.

Following the proclamation of Indonesian Independence in 1945, he joined the newly formed Republican government and served in several cabinets, mostly in economic portfolios.

In 1957, Djuanda was appointed prime minister by Sukarno following the inability of the parties to form a cabinet.

As prime minister, he is remembered for his role in proclaiming the Djuanda Declaration [id].

Djuanda's death and the abolition of the post of Prime Minister in the Indonesian Republican system allowed far greater power to be exercised by the President, now being given full ruling power with minimal oversight, as both Head of State and Head of Government.

His father, Raden Kartawidjaja, was a young teacher, while his mother, Nyi Monat, was a housewife.

After that, he continued to the Technische Hoogeschool te Bandoeng (now the Bandung Institute of Technology), majoring in civil engineering.

This was followed by the takeover of the Mining Bureau, Municipality, Residency and military objects in North Bandung Warehouse.

After carrying out this task, he was appointed Head of the Railway Bureau for the Java and Madura regions.

On the afternoon of 6 November 1963, Djuanda went to a hotel in Jakarta, accompanied by his wife and daughter, to participate in a ceremony.