Alfred Gonti Pius Datubara, OFM Cap (born 12 February 1934) was the Indonesian Roman Catholic archbishop of Archdiocese of Medan from 1976 to 2009.

Alfred Gonti Pius Datubara OFM Cap
Archbishop emeritus, Archdiocese of Medan
Church	Roman Catholic Church
Archdiocese	Archdiocese of Medan
In office	1976–2009
Predecessor	Antoine Henri van den Hurk
Successor	Anicetus Bongsu Antonius Sinaga
Orders
Ordination	22 February 1964[1] by Antoine Henri van den Hurk, OFM Cap
Consecration	24 May 1976[1] by Justinus Darmojuwono; Antoine Henri van den Hurk, OFM Cap; and Raimondo Cesare Bergamin, S.X.
Rank	Archbishop
Personal details
Born	(1934-02-12) 12 February 1934 (age 90) Lawe Bekung, Atjeh, Dutch East Indies
Previous post(s)	Capuchin Priest
Motto	Omnibus Omnia

Datubara was born in Lawe Bekung^[1] in Atjeh, Dutch East Indies (present-day Aceh, Indonesia), and was ordained to the priesthood in 1964. He served as the titular bishop of the Herceg Novi in 1975. In 1976 at the age of 42 Datubara was installed as the first native-born Indonesian Archbishop of Medan succeeding Antoine Henri van den Hurk. He held the title of archbishop until 2009 when he reached the mandatory retirement age of 75.^[2] He is a member of the Order of Friars Minor Capuchin.^[1]