Julius Riyadi Darmaatmadja SJ (born 20 December 1934)[1] is an Indonesian cardinal of the Roman Catholic Church.

Darmaatmadja entered Saint Peter Canisius Minor seminary in Magelang, Central Java in 1951 and Society of Jesus in 1957.

He was then assigned as parish priest in the Archdiocese of Semarang from 1971 to 1973, in Indonesian Province of the Society of Jesus from 1973 to 1978, and then as Rector of Saint Peter Canisius minor seminary from 1978 to 1981.

[3] On 19 February 1983 Pope John Paul II appointed him Archbishop of Semarang; he received episcopal consecration from Justinus Darmojuwono on 29 June 1983.

Although he was eligible to participate as an elector, he did not attend the 2013 papal conclave that followed Pope Benedict XVI's resignation, for health reasons.