The Definitive Timeline: Who Is Dylan O'Brien's Girlfriend In 2025? (Plus His Full Dating History)

Dylan O’Brien’s love life has been a subject of intense speculation for years, especially since the end of his long-term relationship with actress Britt Robertson. As one of Hollywood's most private and sought-after actors, fans are constantly searching for updates on who has captured the heart of the *Teen Wolf* and *Maze Runner* star. As of December 18, 2025, the actor appears to be in a steady and committed relationship, maintaining a low-key profile with his current partner.

The latest and most consistent reports confirm that Dylan O'Brien is currently dating model and photographer Rachael Lange. The couple has been linked since 2023, and their relationship has grown increasingly public—though still discreet—with sightings together throughout 2024 and 2025, solidifying their status as one of Hollywood's quietest new power couples. This article provides a deep dive into his current relationship and a comprehensive look at his entire dating history.

Dylan O'Brien: Full Biographical Profile

Before diving into his relationships, here is a quick overview of the actor who first shot to fame as the beloved Stiles Stilinski.

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• Full Name: Dylan Rhodes O'Brien
• Date of Birth: August 26, 1991
• Age (as of Dec 2025): 34
• Place of Birth: New York City, New York, USA
• Parents: Lisa O'Brien (former actress) and Patrick O'Brien (camera operator)
• Sibling: Older sister, Julia O'Brien
• Breakthrough Role: Stiles Stilinski in the MTV series *Teen Wolf* (2011–2017)
• Major Film Roles: Thomas in *The Maze Runner* trilogy, Mitch Rapp in *American Assassin*, and a critically acclaimed performance in the short film *All Too Well: The Short Film* directed by Taylor Swift.
• Career Start: O'Brien initially gained traction through his comedy videos on YouTube before transitioning to acting.
• Current Projects: He continues to take on diverse roles, cementing his status as a versatile dramatic and comedic actor.

The Current Chapter: Dylan O'Brien's Girlfriend, Rachael Lange

The most significant update in Dylan O'Brien's personal life in the last two years has been his relationship with Rachael Lange. Unlike his highly publicized past relationships, this one has been kept largely out of the spotlight, which has only fueled fan curiosity and media attention.

Who is Rachael Lange? A Look at Dylan O'Brien's Partner

Rachael Lange is a multi-talented creative who works primarily as a model and photographer. Her professional background offers a unique blend of being in front of and behind the camera, a possible point of connection with the actor.

• Age and Background: Rachael was born on December 25, 1997, making her 27 years old as of late 2025. She hails from Los Angeles, California, but currently lives and works in New York City.
• Modeling Career: She is a successful model, having been signed to major agencies, including Elite New York, Ford Models, One Management, and Zombie Model Management. Her work often appears in high-fashion and editorial spreads.
• Other Ventures: Beyond modeling, Lange is also a skilled photographer and has branched out into the wellness sector as an herbalist, showcasing a deep interest in creative and natural pursuits.

Timeline of the Relationship: 2023–2025

The couple’s timeline is marked by subtle but consistent public appearances, indicating a serious and ongoing commitment. Their relationship started gaining traction in late 2023.

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• Early Sightings: They were first spotted together in a non-rumor capacity in 2023, often seen on quiet walks around New York City and holding hands, a rare public display of affection for the usually guarded actor.
• International Travel: In 2024, their relationship was confirmed through shared travel. They were seen together on trips to exotic locations, including a visit to Thailand in April 2024 and Japan in July 2024, with social media posts confirming their shared adventures.
• Film Festival Appearances: Further solidifying their status, Dylan and Rachael were seen together at high-profile industry events, including the Toronto International Film Festival (TIFF) in September 2024, and they were also linked to the Sundance Film Festival. These appearances confirm they are not hiding their relationship, though they choose to keep the details private.

Dylan O'Brien's Intricate Dating History and Past Rumors

Before his relationship with Rachael Lange, Dylan O'Brien was known for one long-term, confirmed relationship and a string of highly publicized but unconfirmed rumors that kept the celebrity gossip columns busy for years. Understanding his past is key to appreciating his current private approach to dating.

The Long-Term Confirmed Relationship: Britt Robertson

The most significant relationship in Dylan O'Brien's history was with actress Britt Robertson. Their romance began around 2011 after they met on the set of the film *The First Time* (2012).

• The Start: The on-screen chemistry between the two young actors quickly translated into a real-life relationship.
• The Duration: Their relationship lasted for approximately six to seven years, making it one of the longest and most stable young Hollywood pairings of the decade.
• The Breakup: The couple quietly separated around 2017 or 2018. The reason for the split was never officially confirmed, but the distance and demands of their individual careers were widely speculated as contributing factors to the end of the long-term commitment.

The Rumor Mill: Unconfirmed Partners and Flings

Since his split from Britt Robertson, Dylan O'Brien has been a frequent subject of dating speculation. While many of these links were never confirmed by the actor, they form a key part of his public dating narrative and showcase the intense fan interest in his private life.

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Sabrina Carpenter (Rumored, 2022): One of the most talked-about rumors involved singer and actress Sabrina Carpenter. The speculation ignited after an alleged photo of the two spending time together went viral. This rumor was particularly popular due to both of their high-profile careers, though neither star confirmed the relationship. The rumored link was short-lived, fading away as quickly as it appeared.

Chloe Bennet (Rumored, 2022): In mid-2022, the *Teen Wolf* star was rumored to be dating actress Chloe Bennet, known for her role in *Agents of S.H.I.E.L.D.*. The rumors circulated after they were photographed together in public, but like many others, this link was never solidified with an official statement or prolonged sightings.

Chloë Grace Moretz (Rumored, 2018): Following his breakup with Britt Robertson, Dylan was briefly linked to actress Chloë Grace Moretz. The speculation was minor and quickly dismissed as nothing more than two friends spending time together.

Other Noteworthy Mentions: The actor has also been briefly associated in the press with other figures, including actress Sarah Ramos (2020) and singer Gracie Abrams, though these links were generally based on minimal evidence and never gained significant traction.

Conclusion: The Future of Dylan O'Brien's Relationship Status

Dylan O'Brien has successfully navigated the pressures of Hollywood fame while maintaining a strong preference for privacy, particularly in his romantic life. His current relationship with Rachael Lange reflects this desire for a grounded, genuine connection away from the constant tabloid scrutiny. The fact that they have been consistently seen together throughout 2024 and 2025—from international trips to major film festivals—suggests a stable and serious partnership.

For fans of the *Maze Runner* and *Teen Wolf* franchises, the actor's happiness is paramount. While he may never be the type to post frequent updates on his social media, the consistent public sightings with Rachael Lange are the clearest indication that Dylan O'Brien is happily off the market and enjoying a private, committed relationship in the current year.