Who Is Dylan O’Brien’s Girlfriend? All About Rachael Lange (and How She’s Subtly Teased Their Relationship for Years)

• Dylan O’Brien was first linked to his girlfriend Rachael Lange in January 2023

• Though O’Brien has not publicly spoken about his relationship, Lange has been posting photos with him since October 2023

• Lange is a model who is passionate about herbal medicine and travel

Though Dylan O’Brien has long been dubbed “the internet’s boyfriend,” Rachael Lange may disagree.

The couple were first linked back in January 2023 after fans shared videos of him holding hands with a mystery woman during Paris Fashion Week, who was later identified as Lange.

O’Brien, who is notoriously private and off social media, has never confirmed his romance with the New York City model. But months after they were spotted together, he started appearing on her Instagram feed.

Outside of the occasional Instagram cameo, Lange, who has modeled for brands like Skims and Garage, has also kept mum about their relationship.

So who is Dylan O’Brien’s girlfriend? Here’s everything to know about Rachael Lange and her relationship with the actor.

She’s a model and photographer

Lange works as a model with Elite New York, per her Instagram bio. She’s posed for brands like Dreamers Delicates, Skims and Garage.

It was her modeling career that introduced her to her other passion: film photography. She wrote on her website that she started experimenting with the hobby in 2017 and began keeping a film diary.

“I’ve always been drawn to beautiful things, and now, I find joy in capturing beautiful moments,” Lange wrote. “Through my lens, I aim to capture fleeting moments, turning them into lasting stories.”

She also has a separate Instagram account she uses as a “photo and video diary,” per her bio. O’Brien was featured picking flowers in an April 2025 post, she captioned, “Lover in the tulip fields.”

They were first linked in 2023

Internet sleuths first caught wind that O’Brien was off the market when the Teen Wolf alum was seen holding hands with Lange during Paris Fashion Week in January 2023, per Entertainment Tonight. However, the model waited until October to confirm her relationship with The Maze Runner star on Instagram.

In a round-up Instagram post of the month, she included photos of O’Brien picking out pumpkins and twirling her while they were in evening wear. “Really cute fall things,” she wrote in the caption.

That December, the Saturday Night actor made another appearance on her Instagram feed in a sweet video of him kissing her cheek in front of a Christmas tree.

They’ve been spotted together a number of times

After they were seen together at Paris Fashion Week, the couple have been spotted on a number of other occasions, including when they attended the Sundance Film Festival in January 2025.

Several months later, in May, Deuxmoi shared photos on Instagram of the two walking their dog in N.Y.C. Both Lange and O’Brien were dressed casually, with him wearing flannel pajama pants and her in a gray sweater and jeans.

They love to travel together

Lange has shared multiple photos and videos of her and O’Brien exploring the world. In July 2024, the couple visited Japan, where they frolicked through flower farms and took Ikebana flower arrangement lessons.

In April 2025, the pair went on a trip to Thailand and enjoyed various activities, from feeding bananas to elephants to hanging out at the beach and visiting historic temples.

Lange also posted some of her film photography from the trip, including a sweet shot of her and O’Brien drinking from coconuts on the beach. She captioned it, “couple of cuties.”

She’s passionate about herbal medicine

In addition to sharing her modelling shots, Lange also frequently posts about her other passion: herbal medicine. She shares recipes and vlogs about going on plant identification walks in her home of N.Y.C.

“Plant identification is a practice I’m still very much a novice at, but it brings me so much joy,” Lange captioned an April 2025 Instagram Reel.

Lange continued, “Getting to know the plants that live around you—and learning about their healing gifts—is such a beautiful way to feel more connected to the local landscape … How beautiful is it that we are surrounded by plant spirits offering us their medicine?”

She lives in New York City

Lange is based in N.Y.C., on the opposite coast from where O’Brien’s last known residence was in California, per the Los Angeles Times. Though she travels to many beautiful places, the model has been vocal about her love for the Big Apple.

“September might be my favorite month in New York 🩸🌕🧚🏻🍎🌻,” she captioned a September 2023 collage of her enjoying all the flora and fauna the city has to offer. 

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