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

Datubara was born in Lawe Bekung[1] in Atjeh, Dutch East Indies (present-day Aceh, Indonesia), and was ordained to the priesthood in 1964.

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.

This article about a Catholic archbishop from Indonesia is a stub.