| Type: | cardinal |
| Honorific-Prefix: | His Eminence |
| Pierre Nguyễn Văn Nhơn | |
| Native Name: | Phêrô Nguyễn Văn Nhơn |
| Native Name Lang: | vi |
| Bishop Of: | Cardinal, Archbishop Emeritus of Hà Nội |
| Province: | Hà Nội |
| See: | Hà Nội |
| Appointed: | 22 April 2010 (as Coadjutor) |
| Enthroned: | 13 May 2010 |
| Ended: | 17 November 2018 |
| Predecessor: | Joseph Ngô Quang Kiệt |
| Successor: | Joseph Vũ Văn Thiên |
| Ordination: | 21 December 1967 |
| Ordained By: | Simon Hòa Nguyễn Văn Hiền |
| Consecration: | 3 December 1991 |
| Cardinal: | 14 February 2015 |
| Created Cardinal By: | Pope Francis |
| Other Post: | Cardinal Priest of San Tommaso Apostolo (2015-) |
| Birth Date: | 1938 4, df=yes |
| Birth Place: | Đà Lạt, Lâm Đồng |
| Nationality: | Vietnamese |
| Motto: | Latin: Illum oportet crescere (He must increase), 3:30 |
| Coat Of Arms: | Coat of arms of Phêrô Nguyễn Văn Nhơn.svg |
| Pierre Nguyen Van Nhon | |
| Dipstyle: | His Eminence |
| Offstyle: | Your Eminence |
| Relstyle: | Cardinal |
Pierre Nguyễn Văn Nhơn (Vietnamese: Phêrô Nguyễn Văn Nhơn; born 1 April 1938) is a Vietnamese prelate of the Catholic Church who served as Archbishop of the Archdiocese of Hanoi from May 2010 to November 2018. A cardinal since February 2015, he was Bishop of the Roman Catholic Diocese of Đà Lạt from 1994 to 2010, and the President of the Catholic Bishops' Conference of Vietnam from 2007 to 2013.
Nhơn was born in 1938 in Lâm Đồng, Vietnam. He was ordained a priest on 21 December 1967. On 11 October 1991, he was appointed Coadjutor Bishop of the Roman Catholic Diocese of Đà Lạt. On 3 December 1991, he was consecrated by Barthélémy Nguyễn Sơn Lâm. He succeeded as Bishop of Đà Lạt on 23 March 1994.
On 22 April 2010, he was appointed Coadjutor Bishop of Roman Catholic Archdiocese of Hanoi.[1] On 13 May 2010, he succeeded Joseph Ngô Quang Kiệt as Archbishop of Hanoi.[2]
On 4 January 2015, Pope Francis announced that Nhơn would be created Cardinal-priest on 14 February.[3] At that ceremony, he was assigned the titular church of San Tommaso Apostolo.[4]
In April 2015 he was appointed a member of the Congregation for the Evangelization of Peoples and of the Pontifical Council for Justice and Peace.
Pope Francis accepted his resignation as Archbishop of Hanoi on 17 November 2018.