Downton Abbey 3
- Blwyddyn: 2025
- Gwlad: United Kingdom
- Genre: Drama, Romance, History
- Stiwdio: Carnival Films, Focus Features
- Allweddair: sequel, aristocrat, 1900s, based on tv series, 20th century
- Cyfarwyddwr: Simon Curtis
- Cast: Hugh Bonneville, Laura Carmichael, Phyllis Logan, Robert James-Collier, Jim Carter, Michelle Dockery