Paulinus Costa (19 October 1936 – 3 January 2015) was the Roman Catholic Archbishop of the archdiocese of Dhaka from 2005 to 2011.

Costa was born in Gazipur, Bangladesh.^[1] He was ordained as a priest on 21 December 1963. He was appointed the Bishop of Rajshahi on 11 January 1996, and was ordained on 26 April the same year.^[2]

On 9 July 2005 he was appointed the Archbishop of the Archdiocese of Dhaka by Pope Benedict XVI,^[1] replacing the deceased archbishop Michael Rosario.

In his official capacity, Costa worked to foster communal harmony in the Muslim-dominated country of Bangladesh. In recognition of his services, Costa was one of eight to receive an award from the Human Rights Legal Aid Society of Bangladesh for "significant contributions in defending human rights in Bangladesh".^[3]

Archbishop Costa retired on 22 October 2011 and was succeeded by Patrick D'Rozario.^[4]

Costa studied theology at the Pontifical Urbaniana University in Rome and obtained a PhD in theology in 1981.^[1]

He died on 3 January 2015 in Dhaka of a heart attack.^{[citation needed]}

• Christianity in Bangladesh
• Roman Catholicism in Bangladesh
• Archdiocese of Dhaka