Fans might not know that based on his public appearances, however, as Stan tends to keep his relationship with girlfriend Alejandra Onievaextremely under wraps.   He did praise her in a rare social media post in June 2021, writing, “Over a year ago, out of a lot of darkness… you became the light ???? I’m so grateful,” alongside a very sweet and funny video illustrating how much she means to him (with a pic of her on his phone standing in for the real thing). After offering fans such an adorable peek into his real-life relationship, it’s understandable if you want to know more! So here’s everything we know about Sebastian Stan’s real-life love, girlfriend Alejandra Onieva. View this post on Instagram

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Is Sebastian Stan in a relationship?

Yes! Stan is dating Onieva and seemingly has been for nearly two years; the pair were first photographed together in summer 2020. 

Who is Sebastian Stan’s girlfriend, Alejandra Onieva?

Onieva, born in Madrid, is a Spanish actress who has appeared in several films made in her home country, including Nueva Tierra, For a Handful of Kisses and Stories Not to Be Told. She also had a primary role in the Spanish-language Netflix series High Seas, about two sisters who get wrapped up in something mysterious and disturbing aboard a luxury ship traveling across the Atlantic in the 1940s.

How long has Sebastian Stan been datingAlejandra Onieva?

It’s unclear exactly how long the pair have been together, although they were first linked in summer 2020 when they were spotted holding hands in New York City. Onieva sort of made their romance Instagram-official when she shared a pic on December 7, 2020, captioned “Walking on a Dream.” It showed the two of them in shadow. In August 2021, she paid tribute to him on his birthday with a five-minute video featuring clips from moments they’ve shared. “Today, many, many… years ago, my favorite soul came to life,” she wrote. “Every word I could say about you wouldn’t be enough. HAPPY BIRTHDAY TO YOUUU BEBELUS…Thank you for showing me how to live life from the heart. Life is a gift, and experiencing it with you is the true beauty of it!!” Later that week, the pair were photographed soaking up the sun in Ibiza, Spain.  View this post on Instagram

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How old is Sebastian Stan’s girlfriend, Alejandra Onieva? 

At the time of Pam and Tommy’s release, Onieva is 29 years old, making her 10 years younger than 39-year-old Stan.

Is Sebastian Stan married?

No, Stan isn’t married yet, but he’s apparently a good-luck charm for other dudes looking to tie the knot! In 2016, a Marvel fan named John Felix proposed to girlfriend Natasha Marrero right in front of Stan while attending the Wizard World Convention in Philadelphia.

Did Sebastian Stan and Leighton Meester date?

Yes—and no doubt that Gossip Girl would have been all over this high-profile romance. Stan and Meester likely met in 2007 when he guest-starred as Carter Baizen on Gossip Girl, where she famously played lead character Blair Waldorf. The pair dated from 2008 to 2010. “I’m a really lucky guy,” Stan told reporters of Meester in 2009. “She’s the most interesting, sophisticated, talented and extremely funny person that I know. She’s really hilarious.” When asked of her romance with Stan after their 2010 split, Meester toldSeventeen, “I’ve only had one experience where it was really hard and I was really sad when it ended, but that’s what taught me a lot about myself and love and life—and that’s good.”

Did Sebastian Stan and Dianna Agron date? 

Relationship rumors began swirling about Stan and Glee star DiannaAgron in 2011 after the pair were reportedly “all over each other” after one of her performances in Los Angeles. The romance was short-lived, however, as they reportedly split later that year.

Who else has Sebastian Stan dated? 

Stan’s relationship with Meester wasn’t his only time dating a co-star, as he also briefly dated fellow Once Upon a Time star Jennifer Morison in summer 2012. The pairing didn’t have a fairytale ending though, as they split about a year later. He had another on-set romance a year later, when he began dating Revenge star Margarita Levieva after they worked together on the film Spread. Next, From Kim Kardashian to Kate Beckinsale to (Who Could Forget?) Ariana Grande, Here’s Who Pete Davidson Has Dated 

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