The actress and entrepreneur, 48, has been famously private when it comes to her 11-year long relationship with actor Ryan Gosling, 42.
In a photo shared on Tuesday, Mendes is seen covering her face with her wrist, inked with the words “de Gosling.”
In Hispanic culture, the use of “de” or “of” unifies the woman’s last name with her husband’s after marriage, meaning the star’s tattoo could be indicative of a “Mrs. Gosling” title.
In an Instagram photo shared in September, she subtly displayed the sentimental tattoo while showing off a field of flowers, and her followers were quick to gush over the meaning of the art with many referring to Gosling as Mendes’ husband.
Mendes and Gosling met on the set of The Place Beyond the Pines in 2011, in which they played a couple with an infant son.
Their on-screen chemistry became real-life love when, shortly after filming wrapped, the two were spotted getting cozy at Disneyland and sharing a romantic kiss in Paris.
Mendes and Gosling have shared tidbits about their home life with daughters Esmeralda Amada, 8, and Amada Lee, 6.
Gosling also shared what his life as a dad of two has been like, revealing how some of his latest projects were even inspired by his daughters.
The Oscar nominee also plans to introduce his daughters to his work with the hotly anticipated upcoming Barbie movie, in which he plays Ken.