# Robert J. Brennan

> Catholic bishop

**Wikidata**: [Q1629608](https://www.wikidata.org/wiki/Q1629608)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Robert_J._Brennan)  
**Source**: https://4ort.xyz/entity/robert-j-brennan

## Summary
Robert J. Brennan is an American Catholic bishop and priest. He has served as auxiliary bishop of the Roman Catholic Diocese of Rockville Centre (2012–2019), as diocesan bishop of the Roman Catholic Diocese of Columbus (2019–2021), and has been the diocesan bishop of the Roman Catholic Diocese of Brooklyn since 2021.

## Biography
- Born: 1962-06-07, The Bronx
- Nationality: United States
- Education: St. John's University
- Known for: Serving as a Catholic bishop in multiple U.S. dioceses, including Columbus and Brooklyn
- Employer(s): Roman Catholic Diocese of Brooklyn (current); Roman Catholic Diocese of Columbus (2019–2021); Roman Catholic Diocese of Rockville Centre (2012–2019); St. John's University (affiliated/educated)
- Field(s): Catholic Church; also listed occupations include computer scientist and mathematician

## Contributions
Robert J. Brennan’s principal concrete contributions in the public record are his successive episcopal leadership roles. He was ordained a Catholic priest with a recorded start date as a priest on 1989-05-27. He began serving as auxiliary bishop of the Roman Catholic Diocese of Rockville Centre with a recorded start of 2012-06-08 and held the titular see of Erdonia from 2012 until 2019. Brennan is recorded as a Catholic bishop beginning 2012-07-25 and was consecrated with William Murphy listed as principal consecrator and Charles J. Chaput and Paul Henry Walsh as principal co-consecrators. On 2019-01-31 he began his tenure as diocesan bishop of the Roman Catholic Diocese of Columbus, a post he held until 2021-09-29; his predecessor in Columbus is recorded as Frederick F. Campbell and his successor as Earl K. Fernandes. On 2021-09-29 he began serving as diocesan bishop of the Roman Catholic Diocese of Brooklyn, succeeding Nicholas Anthony DiMarzio. Public media assets associated with him include a portrait image and a diocesan coat of arms.

## FAQs
### Q: Who is Robert J. Brennan?
A: Robert J. Brennan is an American Catholic bishop who has served as auxiliary bishop of Rockville Centre (2012–2019), diocesan bishop of Columbus (2019–2021), and diocesan bishop of Brooklyn since 2021.

### Q: When and where was he born?
A: He was born on 1962-06-07 in The Bronx, New York.

### Q: Where did he receive his education?
A: He is recorded as having been educated at St. John's University.

### Q: Who consecrated him as a bishop?
A: William Murphy is listed as the principal consecrator; Charles J. Chaput and Paul Henry Walsh are listed as principal co-consecrators.

## Why They Matter
Robert J. Brennan matters in the context of the Catholic Church in the United States because he has occupied successive episcopal leadership positions at the diocesan level. His recorded service as auxiliary bishop of Rockville Centre, diocesan bishop of Columbus, and diocesan bishop of Brooklyn places him among the clerical leaders responsible for oversight of local diocesan structures, clergy, and pastoral governance within those jurisdictions. The transitions recorded in his career—moving from an auxiliary role and a titular see to leading a midwestern diocese and then a major New York diocese—mark him as a significant episcopal figure whose appointments reflect institutional trust and continuity in episcopal succession. His consecration by named principal consecrator and co-consecrators is a documented part of apostolic succession. Without the factual record of these appointments and successions, there would be a gap in the documented leadership lineage for the dioceses he has served.

## Notable For
- Serving as diocesan bishop of the Roman Catholic Diocese of Brooklyn since 2021-09-29.
- Serving as diocesan bishop of the Roman Catholic Diocese of Columbus from 2019-01-31 to 2021-09-29.
- Serving as auxiliary bishop of the Roman Catholic Diocese of Rockville Centre from 2012-06-08 to 2019-01-31 and as titular bishop of Erdonia during that period.
- Ordination as a Catholic priest with a recorded start date of 1989-05-27.
- Education at St. John's University; documented public portrait image and diocesan coat of arms.

## Body
### Personal details
- Full name: Robert John Brennan (aliases: Robert John Brennan).
- Birth: 1962-06-07, The Bronx.
- Citizenship: United States.
- Sex/gender: Male.
- Religion: Catholic Church.

### Education
- Educated at St. John's University (institution recorded; specific degrees not listed in provided materials).

### Ordination and priesthood
- Recorded start as Catholic priest: 1989-05-27.

### Episcopal ministry and appointments
- Auxiliary Bishop, Roman Catholic Diocese of Rockville Centre
  - Position start: 2012-06-08.
  - Ended: 2019-01-31.
  - Held a titular bishopric of Erdonia concurrently (2012–2019).
- Catholic bishop (recorded start_time): 2012-07-25 (occupation qualifier).
- Consecrators:
  - Principal consecrator: William Murphy.
  - Principal co-consecrators: Charles J. Chaput; Paul Henry Walsh.
- Diocesan Bishop, Roman Catholic Diocese of Columbus
  - Start: 2019-01-31.
  - End: 2021-09-29.
  - Predecessor (recorded): Frederick F. Campbell.
  - Successor (recorded): Earl K. Fernandes.
- Diocesan Bishop, Roman Catholic Diocese of Brooklyn
  - Start: 2021-09-29.
  - Predecessor (recorded): Nicholas Anthony DiMarzio.

### Other recorded data and identifiers
- Image: https://commons.wikimedia.org/wiki/Special:FilePath/Bishop_Robert_Brennan.jpg
- Coat of arms: https://commons.wikimedia.org/wiki/Special:FilePath/Coat_of_arms_of_Robert_John_Brennan_(Brooklyn).svg
- Freebase ID: /m/0pdndvp
- Catholic-hierarchy person id: brenr

(Entry compiled solely from the provided source material.)

## References

1. Catholic-Hierarchy.org