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Sienna Miller Welcomes Third Child with Boyfriend Oli Green

other · 2026-05-12

On Monday, E! confirmed that actress Sienna Miller has welcomed her third child. This newborn marks her second with partner Oli Green, joining their daughter born in December 2023. Additionally, Miller has a 13-year-old daughter named Marlowe with actor Tom Sturridge. The announcement follows Miller's pregnancy reveal at the 2025 Fashion Awards, where she donned a sheer Givenchy gown. Previously, at Vogue World: London in 2023, she showcased a maternity look featuring a Schiaparelli puffball skirt and a ruched cropped top. Known for her bohemian fashion sense, Miller frequently incorporates braided headbands and flowing blouses into her wardrobe.

Key facts

  • Sienna Miller has given birth to her third child.
  • The baby is her second child with boyfriend Oli Green.
  • Miller and Green had their first child together, a daughter, in December 2023.
  • Miller also has a 13-year-old daughter, Marlowe, with actor Tom Sturridge.
  • The confirmation was made to E! on Monday.
  • Miller revealed her pregnancy at the 2025 Fashion Awards in a sheer Givenchy dress.
  • She previously showed her baby bump at Vogue World: London in 2023 in Schiaparelli.
  • Miller is known for her boho-inspired fashion style.

Entities

Artists

  • Sienna Miller
  • Oli Green
  • Tom Sturridge

Institutions

  • Givenchy
  • Schiaparelli
  • Vogue World
  • E!

Locations

  • London
  • United Kingdom

Sources