The Metropolitan Archdiocese of Hanoi (Latin: Archidioecesis Metropolitae Hanoiensis, Vietnamese: Tổng giáo phận đô thành Hà Nội, French: Archidiocèse Metropolitain d'Hanoï) is a Catholic metropolitan archdiocese of Vietnam.

In December 2007, thousands of Vietnamese Catholics marched in procession to the former apostolic nunciature in Hanoi (confiscated by the communist government in 1959) and prayed there twice aiming to return the property to the local Church.

It is purported that Archbishop Emeritus Ngo Quang Kiet was pressured to retire by government officials.

His retirement was accepted by Pope Benedict XVI on 10 May 2010 and he was succeeded by Coadjutor Archbishop Nguyên Van Nhon.

On 17 November 2018, 58-year-old Joseph Vũ Văn Thiên, Bishop of Hải Phòng, was appointed Archbishop of Hanoi by Pope Francis.