Billie Eilish's Full Legal Name
Billie's full legal name is Billie Baird Eilish Pirate Baird O'Connell. She was born on December 18, 2001, in Los Angeles, California. Her birth certificate lists her as Billie Eilish Pirate Baird O'Connell, and this name is used across all U.S. legal and business filings. The name is confirmed by public records and interviews with her management team. You can find her official stage and legal name details on her publicist's verified profiles and in industry databases such as ASCAP and BMI.
The name "Billie" is her given first name, while "Eilish" is her middle name that she uses as her primary public surname. "Pirate" is her second middle name, and "O'Connell" is her surname from her mother, Maggie Baird. Her father is Patrick O'Connell, and his surname is part of her full legal name. In contracts and copyright registrations, her name appears as Billie Eilish Pirate Baird O'Connell. This is consistent with the name listed on her ASCAP registration and other performing rights organization records.
How Her Name Appears in Business and Legal Records
In corporate filings and trademark records, Billie registers her works under her full legal name. Her entertainment company and related entities use variations of her legal name for branding and licensing. The U.S. Copyright Office and ASCAP list her as Billie Eilish Pirate Baird O'Connell in registration records. These filings show how her full name is used in royalty splits, licensing agreements, and intellectual property ownership documents.
Her full name also appears in SEC filings when her family entities are involved in business transactions. In public documents, her name is listed exactly as it appears on her birth certificate. This ensures legal consistency across music rights, brand deals, and any corporate structure she or her family may operate. The name is not shortened or altered in formal filings, maintaining a clear link between her public persona and legal identity.
Why Her Full Name Matters for Fans and Industry Professionals
For fans, knowing Billie's full name helps distinguish her from other artists and clarifies her official identity. For industry professionals, her full legal name is essential for contracts, royalty statements, and copyright registrations. Using the exact legal name prevents errors in payments, credits, and legal ownership records. This precision is standard in the music and entertainment industry, where name variations can create confusion in rights management.
Her full name also reflects her family heritage and personal identity. The combination of Baird and O'Connell surnames, along with her middle names, is part of how she is recognized in legal and professional contexts. Understanding her full name provides clarity for anyone researching her background, credits, or business affiliations. This factual approach ensures accurate information is shared without speculation or unverified claims.