Roman Catholic Archdiocese of Díli
The Roman Catholic Archdiocese of Díli () is an archdiocese located in the city of Díli in Timor-Leste.

The country's only Major Seminary, the Seminary of SS Peter and Paul is located within the Diocese.

In 1983 Bishop Carlos Filipe Ximenes Belo S.D.B. took over the administration of Dili Diocese. Then the only diocese in the territory, the 700,000 Catholics were divided into 30 parishes administered by 71 priests.

In 2017 the Diocese has 28 parishes with 585,958 Catholics. In 2019 it had grown to  30 parishes in the five districts of Dili, Ermera, Aielu, Ainaro and Manufahi. It has 149 priests, including 63 diocesan priests, 86 religious priests, 132 brothers and 432 nuns.

On Wednesday, September 11, 2019, the Holy See announced that Pope Francis had elevated Dili to the status of a Metropolitan Archdiocese; the Ecclesiastical Province of Dili will have two suffragan sees, the Dioceses of Baucau and Maliana. Bishop da Silva will be raised to the rank of Archbishop.

History
 4 September 1940: Established by the bull Sollemnibus Conventionibus of Pope Pius XII as the Roman Catholic Diocese of Díli from the Roman Catholic Diocese of Macau. Originally the diocese was a suffragan of the Archdiocese of Goa and Daman.
 On 1 January 1976 under the bull Ad nominum of Pope Paul VI the diocese became immediately subject to the Holy See (Exemption).
 On 4 September 1990 the diocese celebrated its 50th anniversary.
 On 30 November 1996 it lost a portion of its territory to the newly erected Diocese of Baucau.
 In 2009 the government gave US$1.5 million to two dioceses in East Timor  — Dili and Baucau, which they are to receive annually  "to run social programs for people". Poverty remains a massive problem since independence in 2002, with about half of the 1 million population unemployed and 45 per cent living on less than US$1 a day.
 1 February 2010: The Roman Catholic Diocese of Dili loses territory to form the newly erected Roman Catholic Diocese of Maliana, the third Roman Catholic diocese in East Timor 
 Pope John Paul II celebrated Mass with crowds of young people of East Timor on 12 October 1989. In 2008 a chapel and statue were built and dedicated in his honour in the suburb of Tasi-Tolu, in the Diocese. These were blessed by the Apostolic Nuncio of East Timor, Archbishop Leopoldo Girelli.

Leadership
Archbishops of Dili (Roman rite)

 Archbishop Virgílio do Carmo da Silva, S.D.B. (11 September 2019 – Present)

Bishops of Díli (Roman rite)

 Bishop Virgílio do Carmo da Silva, S.D.B. (30 January 2016 – 11 September 2019)
 Bishop Basilio do Nascimento (Apostolic Administrator; 9 February 2015 – 30 January 2016)
 Bishop Alberto Ricardo da Silva (27 February 2004 – 9 February 2015)
 Bishop Basilio do Nascimento (Apostolic Administrator 26 November 2002 – 27 February 2004)
 Bishop Carlos Filipe Ximenes Belo, S.D.B. (Apostolic Administrator 21 March 1988 – 26 November 2002)
 Fr. Martinho da Costa Lopes (later Msgr.) (Apostolic Administrator 1977 – 1983)
 Bishop José Joaquim Ribeiro (31 January 1967 – 22 October 1977)
 Bishop Jaime Garcia Goulart (12 October 1945 – 31 January 1967)