Fans searching for Sebastian Stan’s girlfriend may still come across information about his past relationship with Spanish actress Alejandra Onieva. The pair were romantically linked in 2020 and were photographed together on several occasions, including during a trip to Ibiza. Their relationship attracted significant attention, especially after Onieva appeared in social media posts shared by the Marvel actor. However, Sebastian Stan and Alejandra Onieva are no longer together.
The major update in Sebastian Stan’s love life is his relationship with Annabelle Wallis, known for projects including Peaky Blinders and Malignant. The couple have been romantically linked since 2022 and gradually made more public appearances together as their relationship progressed. In 2026, their relationship entered an even bigger new chapter when they welcomed their first child together.
Sebastian Stan and Annabelle Wallis’ Relationship Explained
Sebastian Stan and Annabelle Wallis kept their romance largely private during the early years of their relationship. Although they were first linked in 2022, they avoided publicly discussing their personal lives in detail. Their relationship became more visible through appearances at major events, including the 2025 Golden Globe Awards and the BAFTA Film Awards.
Their relationship received wider attention when Stan publicly expressed his affection for Wallis during his Golden Globes acceptance speech in 2025. Since then, the couple have continued supporting each other at several high profile events while maintaining a relatively low key personal life. Their 2026 appearances also highlighted their transition into parenthood.
So, the answer to whether Alejandra Onieva is Sebastian Stan’s girlfriend is no. That relationship belongs to his past, while Annabelle Wallis is his current partner. The couple are now parents and remain together, making Annabelle Wallis the most important development in Sebastian Stan’s relationship timeline.
