Actress Sienna Miller, 44, is set to welcome her third child, her second with partner Oli Green, and is embracing a slower pace this year. Miller subtly announced her pregnancy at the 2025 Fashion Awards in London on December 1, 2025, where she graced the red carpet in a stunning sheer white Givenchy gown, proudly showcasing her baby bump.

This new arrival will join her 13-year-old daughter, Marlowe, from her previous relationship with actor Tom Sturridge, and a daughter born in late 2023/early 2024 with Oli Green, whose name has not been publicly disclosed. Miller, who has been candid about freezing her eggs and the societal pressures around having children in her forties, shared her excitement about this new chapter.

Speaking to Grazia magazine, Miller revealed her intentions to take a break from her demanding Hollywood schedule. "I'm looking forward to taking some time off, being with my kids more consistently and surrendering to how random life is," she stated. This decision highlights her desire to prioritize her growing family as she anticipates the arrival of her third child.