Oscar-winning actress Diane Keaton‘s cause of death has been revealed nearly a week after her passing shocked Hollywood and fans worldwide. The beloved star died of pneumonia on October 11, 2025, according to a statement released by her family to People magazine.
“The Keaton family are very grateful for the extraordinary messages of love and support they have received these past few days on behalf of their beloved Diane, who passed away from pneumonia on October 11,” the family shared in their statement. The announcement came on Wednesday (October 15, 2025), providing closure to questions surrounding the legendary actress’s unexpected death at 79.
New details about Diane Keaton’s final days have emerged through conversations with close friends. Longtime friend and award-winning singer-songwriter Carole Bayer Sager told People that when she saw Keaton recently, she was shocked by her appearance. “I saw her two or three weeks ago, and she was very thin,” Sager said. “She had lost so much weight.”
Sager explained that she hadn’t seen Keaton often over the past year after the actress left Los Angeles following wildfires earlier this year. “She had to go to Palm Springs because her house had been damaged inside, and they had to clean everything,” Sager noted. “She was down there for a while, and when she came back, I was kind of stunned by how much weight she’d lost.”
Emergency responders were called to Keaton’s Los Angeles home on Saturday morning, October 11, and paramedics transported her to a nearby hospital, according to authorities.
The family’s statement also honored Diane Keaton’s passions beyond her illustrious acting career. “She loved her animals and she was steadfast in her support of the unhoused community, so any donations in her memory to a local food bank or an animal shelter would be a wonderful and much appreciated tribute to her,” the family requested.
Keaton never married and is survived by her adopted daughter, Dexter, and son, Duke. The actress won the Academy Award for Best Actress for her iconic role in Annie Hall and received additional nominations for Reds, Something’s Gotta Give, and Marvin’s Room. Her career spanned decades, leaving an indelible mark on cinema and inspiring generations of performers.
Since her passing, tributes have poured in from fellow actors, directors, and fans celebrating her unique talent, distinctive style, and fearless independence.
