Marina (the pop artist formerly known as Marina and the Diamonds) is 40 years old as of 2026.

She was born on October 10, 1985, in Brynmawr, Wales, and fan and profile pages consistently list her birthdate as October 10, 1985. That means she turned 40 on October 10, 2025, so during 2026 she is in her 40th year of life (age 40).

If you were asking about a different Marina (for example a character in a game, a classmate, or a forum personality), tell me which one and I can look up or estimate that age instead.