Billie Eilish’s Last Name Isn’t Actually ‘Eilish’

She’s a unique artist with unique music. It only makes sense that her full legal name is equally as unique. Turns out, “Bad Guy” artist, Billie Eilish, has a few different middle names in her legal birth name and Eilish is one of them. What is Billie Eilish’s last name? Here’s our look into the meaning of Billie Eilish’s real name, Billie Eilish Pirate Baird O’Connell.

Billie Eilish isn’t this Grammy Award-winning artist’s full name

Some know her as the artist behind songs like “Bury a Friend” and “Bad Guy.” Others know her as the singer in the Grammy Award-winning album, When We All Fall Asleep, Where Do We Go. Billie Eilish is one of the youngest performers dominating the music industry and multiple award shows. 

When she’s performing, the artist goes by her first name, Billie, and one of her middle names, Eilish. She also releases music and YouTube videos as “Billie Eilish.” Her last name, however, is the same name shared with her brother and the other members of her family.

What is Billie Eilish’s real name?

Although some fans just know her by her first and middle name, Billie Eilish has a few different legal names. The “Bad Guy” performer’s full name is actually Billie Eilish Pirate Baird O’Connell. Her first last name is actually the last name of her mother, Maggie Baird. Her second last name comes from her father.

According to Insider, Billie Eilish’s parents, Maggie Baird and Patrick O’Connell, “who are both actors, apparently wanted her first name to be ‘Eilish’ after they watched a documentary about conjoined Irish twins, Katie and Eilish Holton.” 

When Maggie Baird’s father, named Bill, died during her pregnancy, they changed their minds, naming their daughter after him. Billie Eilish’s second middle name, Pirate, actually was an idea from Billie Eilish’s older brother, Finneas. He was only 4-years-old at the time of her birth and became dead set on calling her “Pirate.”

Billie Eilish performs during The BRIT Awards 2020
Billie Eilish performs during The BRIT Awards 2020 | Samir Hussein/WireImage

Billie Eilish’s brother also, technically, uses a stage name

There’s another mastermind behind the music of Billie Eilish. The artist creates a number of her songs with her brother, Finneas. This performer also has a number of solo songs, as well as a stage name to accompany them. While performing and releasing music, he only goes by his first name.

Finneas’s full legal name is Finneas Baird O’Connell, meaning he also has the last name of his mother incorporated into his name. Together with his sister, the duo accepted a number of Grammy Awards, including Album of the Year and Song of the Year for “Bad Guy.”

Fans can learn more about this performer from her social media platforms. Music by Billie Eilish, including her album When We All Fall Asleep, Where Do We Go, is available on music platforms like Spotify, Apple Music, and Tidal. 

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