Brennan Unisex

Popularity: #718 · Trend: ↘ Falling

Name Meaning & Origin Pronunciation: BREN-uhn //ˈbrɛnən//

Origin: Irish; Gaelic

Meaning: Irish: descendent of Braonán; Gaelic: 'sorrow' or 'sadness'

Historical & Cultural Background

The name Brennan has its roots in the Irish language, derived from the Gaelic surname "O Braonain," which means "descendant of Braonán." The name Braonán itself is believed to be derived from the word "braon," meaning "sorrow" or "sadness," indicating a possible connection to a historical or mythical figure associated with these themes. The transition of the name into English occurred through the anglicization of Irish surnames during the 17th and 18th centuries, a period marked by significant cultural and political changes in Ireland, leading to the adoption of more recognizable forms in English-speaking contexts.

Historically, the Brennan surname is associated with various notable figures in Irish history, particularly in the medieval period. The O'Brennan family was prominent in County Kerry, where they were known as a Gaelic noble family.

The name gained further recognition through its association with various saints and ecclesiastical figures, contributing to its enduring presence in Irish culture. The name Brennan also appears in early Irish literature, including the Annals of the Four Masters, which document significant events in Irish history from the 5th to the 17th centuries.

Culturally, the name Brennan carries connotations of heritage and identity, particularly within Irish communities. It is often associated with themes of loyalty and kinship, reflective of the clan-based society of ancient Ireland.

The name has also been embraced in various forms of artistic expression, including literature and music, which celebrate Irish heritage. A diminutive form, "Bren," has emerged in some contexts, further illustrating the name's adaptability and resonance across generations.

Overall, Brennan encapsulates a rich tapestry of linguistic, historical, and cultural significance that underscores its place in both Irish and English-speaking traditions.

Famous people named Brennan

In this section, you will find notable people named Brennan. We include individuals across a wide range of fields, including actors known for their work in film, television, and stage productions. You'll also find musicians, directors, and other public figures named Brennan who have made a significant impact on popular culture.

We also feature individuals named Brennan who have made meaningful contributions to science, politics, athletics, literature, and other areas of public interest.

Please note that not every baby name in our database currently has a famous namesake listed. If you would like to suggest a name we may have missed or submit a correction, feel free to contact us. We review and finalize additions and corrections within 24 hours.

Brennan Lee Mulligan is a game designer and writer best known for Dimension 20, CollegeHumor, and Dungeons & Dragons content.

Brennan Brown is an actor best known for The Good Wife, The Blacklist, and The Last Ship.

Brennan Elliott is an actor best known for UnREAL, The 9th Life of Louis Drax, and All My Children.

Fictional characters named Brennan

The following list of fictional characters named Brennan is a work in progress. If you would like to suggest an additional character, please send us the character's name along with a brief, one-sentence description of what they are best known for.

You may also submit corrections, which we will review and update as quickly as possible.

Brennan is a fictional character from the TV series Bones. He is a forensic anthropologist who works with the FBI to solve crimes using human remains.

Sibling suggestions

If you're looking for sibling name ideas that pair well with Brennan, the following options are frequently chosen as complementary choices by parents.

Similar names

Based on our extensive baby names database, several names share stylistic or phonetic similarities with Brennan. These names can serve as alternatives to the sibling suggestions listed above and may help you find the perfect complementary name for your growing family.

U.S. Historical Usage

The name Brennan was first seen in the United States in 1916.

Brennan has ranked as high as #442 nationally, which occurred in 2009, and has been most popular in California, Louisiana, Texas, Ohio, and Michigan.

In the past 5 years the name Brennan has been trending down compared to the previous 5 years.

Popularity Over Time (National)

The name Brennan is part of our comprehensive baby names database, which includes Social Security Administration (SSA) data dating back to 1880—the first official year of state and national tracking. The chart below shows when Brennan was first recorded in the United States and illustrates how its popularity has risen and fallen over time.

Top States for Brennan (2024)

We track the most popular states for each baby name every year and highlight the locations where the name appears most frequently. In some cases, you may see four or five states listed. However, we only display states where the name represents a significant percentage of births, so the number of states shown can range from one to several.

State Births Share
LA 15
9%
OH 13
8%
TX 13
8%
NY 13
8%
CA 8
5%
WA 8
5%
WI 7
4%
SC 7
4%
GA 7
4%
NC 7
4%
IN 6
4%
KY 6
4%
OR 6
4%
PA 6
4%
AL 6
4%

Popularity Over Time (National) — Table

We track the national popularity of each baby name annually. The table below displays each year along with the number of births reported by the Social Security Administration. This data combines all state-level reporting from the SSA's baby names database to provide a comprehensive view of overall birth counts for Brennan.

YearBirths
2024207
2023213
2022224
2021265
2020315
2019340
2018382
2017464
2016549
2015690
2014806
2013927
20121,011
20111,177
20101,279
20091,464
20081,316
20071,207
20061,116
20051,054
20041,061
20031,127
20021,121
20011,121
20001,158
19991,106
19981,051
1997967
1996895
1995916
1994756
1993663
1992642
1991698
1990606
1989445
1988460
1987422
1986292
1985253
1984232
1983182
1982152
1981139
1980142
1979136
1978123
1977108
197699
1975102
197489
197369
197257
197178
197073
196966
196858
196753
196653
196536
196430
196332
196224
196125
196017
195911
195814
19579
195611
195510
19548
19536
19515
19506
19496
19165