Actress Sienna Miller, 44, Welcomes Baby With Boyfriend, 29
The Daily Beast
Last updated: May 12, 2026
Actress Sienna Miller has given birth to a new baby, her second child, with her partner Oli Green. The news was shared by Miller, who expressed joy and a sense of wonder at the arrival of her new infant.
- Sienna Miller and her boyfriend, model Oli Green, are now parents to a newborn. The announcement was made by Miller, who described the experience of having a "tiny baby next door" as something that makes constructing sentences feel challenging.
- This marks Miller's second child, with her first child, Marlowe, born in 2012, from her previous relationship with actor Tom Sturridge.
- The actress, aged 42, and Green, aged 29, have been publicly together since early 2022.
- The exact birth date and name of the new baby have not yet been publicly disclosed.
- Miller's pregnancy was revealed in August 2023 when she appeared at Wimbledon with a visible baby bump.
- The arrival of the new baby signifies a new chapter for the couple, adding to Miller's family.
- The news has generated public interest due to Miller's prominence as an actress and the age difference between her and her partner.
