Finneas O’Connell is no longer dating Claudia Sulewski—he is married to her. The Grammy-winning musician and his longtime partner reportedly exchanged wedding vows on August 29, 2026, after nearly eight years together.
Their intimate outdoor ceremony took place at San Ysidro Ranch in Montecito, California, with Finneas’ younger sister, Billie Eilish, officiating the wedding.
The celebration marked a new chapter for a couple whose relationship has influenced Finneas’ music, creative projects, and personal life since 2018.
Here is everything to know about Finneas O’Connell’s wife, Claudia Sulewski, their relationship timeline, engagement, and wedding.
Who Is Finneas Dating?
Finneas O’Connell is married to actress, content creator, and entrepreneur Claudia Sulewski.
The couple began dating in September 2018 and maintained a long-term relationship before announcing their engagement in 2025.
They married the following year.
Although fans frequently search for information about Finneas’ girlfriend, Claudia is now his wife, according to reports of their August 2026 wedding.
Their relationship has attracted attention because both have established careers in entertainment and creative industries.
Who Is Claudia Sulewski?
Claudia Sulewski is an American actress, digital creator, and businesswoman who first gained recognition through YouTube.
Born on February 19, 1996, she built an audience by sharing lifestyle, beauty, and fashion content.
Her online success eventually led to opportunities in acting, directing, and entrepreneurship.
She appeared in the 2022 film I Love My Dad, alongside Patton Oswalt and James Morosini.
Claudia also founded Cyklar, a personal care brand focused on skincare and body care products.
Her career has developed independently of her relationship with Finneas.
How Did They Meet?
Finneas and Claudia first connected through a dating app in September 2018.
Their initial conversations quickly developed into a romantic relationship.
At the time, Finneas was becoming increasingly recognized for his songwriting and production work, particularly alongside his sister Billie Eilish.
Claudia had already established a substantial online following.
Despite working in different areas of entertainment, the pair shared interests in music, film, and creative storytelling.
Their relationship became public as they began appearing together in photographs and social media posts.
Over the following years, they supported each other’s professional projects.
The Song ‘Claudia’
One of the most memorable details about their relationship involves a song Finneas wrote shortly after meeting her.
Finneas created his 2019 track Claudia after their first meeting, capturing his excitement about their new connection.
The song became an early example of how his personal experiences influenced his songwriting.
Rather than keeping his relationship entirely separate from his music, Finneas occasionally incorporated romantic themes inspired by Claudia.
The track remains closely associated with the beginning of their relationship.
It also helped introduce fans to the personal connection behind some of his creative work.
Another Musical Inspiration
Claudia also inspired Finneas’ 2022 song Mona Lisa, Mona Lisa.
The track explores romantic feelings through artistic imagery and intimate songwriting.
Claudia contributed directly to the project by directing its music video.
Their collaboration demonstrated how the couple could combine their individual creative strengths.
Finneas brought his experience in songwriting and music production, while Claudia applied her visual storytelling skills.
The project became another recognizable milestone in their relationship.
Their 2025 Engagement
Finneas proposed to Claudia on September 22, 2025, after approximately seven years of dating.
The proposal reportedly took place during a sunset helicopter ride, creating a memorable setting for the occasion.
Claudia received a cushion-cut diamond engagement ring.
The couple subsequently shared their engagement news publicly, prompting congratulations from fans and fellow entertainers.
Their announcement confirmed that they were preparing to take the next step in a relationship that had already lasted several years.
The engagement came almost exactly seven years after they first connected in September 2018.
Their Montecito Wedding
Finneas O’Connell and Claudia Sulewski married on August 29, 2026, in Montecito, California.
Their wedding reportedly took place at San Ysidro Ranch, a luxury property known for its gardens and private event settings.
The outdoor ceremony emphasized an intimate atmosphere while bringing together relatives and close friends.
After nearly eight years as a couple, the celebration marked their transition from longtime partners to husband and wife.
The location offered a scenic setting away from the busy entertainment environments where both regularly work.
The wedding also attracted attention because of its notable guests and Billie Eilish’s involvement.
Billie Eilish’s Role
Billie Eilish officiated her brother Finneas’ wedding to Claudia Sulewski.
The singer played a central role in the ceremony rather than attending solely as a guest.
Billie and Finneas have shared a particularly close professional relationship throughout their careers.
Together, they have created internationally successful music, including Billie Eilish’s Grammy-winning recordings.
Their collaboration has made them one of contemporary pop music’s most recognizable sibling partnerships.
Billie’s participation in the wedding added a personal family element to the celebration.
It also reflected the strong connection between the siblings beyond their musical achievements.
Celebrity Wedding Guests
The wedding reportedly brought together several familiar entertainment personalities.
Justin Bieber and Hailey Bieber were among the high-profile guests named in coverage of the event.
Other reported attendees included Emma Chamberlain, Kristen Bell, Dax Shepard, and Jason Sudeikis.
The guest list reflected the couple’s friendships across music, film, television, and digital entertainment.
Despite the recognizable names, the event was described as an intimate celebration rather than a large public spectacle.
The couple’s focus remained on their marriage and the people closest to them.
Who Is Finneas O’Connell?
Finneas O’Connell, professionally known as FINNEAS, is an American singer, songwriter, producer, and actor.
He was born on July 30, 1997, in Los Angeles, California.
Finneas gained international recognition through his work with Billie Eilish, producing and co-writing many of her biggest songs.
He has also released solo music, including the album Optimist and subsequent projects.
His achievements include multiple Grammy Awards and recognition for his contributions to film soundtracks.
Although his professional success brought him worldwide attention, his relationship with Claudia has remained an important part of his personal story.
Their Life Together
Before marrying, Finneas and Claudia spent years supporting one another through major career developments.
Their relationship combined shared creative interests with separate professional ambitions.
Finneas continued building his music career, while Claudia expanded into acting, directing, and entrepreneurship.
Their collaborations offered occasional glimpses into their relationship without making every personal moment public.
By marrying in August 2026, they completed a journey that began with a dating-app connection eight years earlier.
The wedding represented a significant milestone for both.
Final Thoughts
Finneas O’Connell’s former girlfriend, Claudia Sulewski, is now his wife.
The couple met in September 2018, became engaged on September 22, 2025, and married on August 29, 2026.
Their wedding took place at San Ysidro Ranch in Montecito, with Billie Eilish serving as the officiant.
Claudia has inspired Finneas’ songs Claudia and Mona Lisa, Mona Lisa, while developing her own career in entertainment and business.
As of October 2026, Finneas and Claudia are newlyweds, beginning their married life after nearly eight years together.
