Diane Keaton’s cause of death revealed: Family finally speaks out days after her passing

Diane Keaton died at the age of 79 on October 11. Days later, her family has officially revealed the cause of her death in an official statement. 

LM US Desk
Updated16 Oct 2025, 07:58 PM IST
Diane Keaton’s cause of death revealed: family finally speaks out days after her passing
Diane Keaton’s cause of death revealed: family finally speaks out days after her passing(Chris Pizzello/Invision/AP)

Diane Keaton passed away at the age of 79 on 11 October. The Oscar-winning actress’s cause of death has now been shared by her family. The family has also expressed their gratitude for all the love that came their way during the tragic time. A source had revealed to PEOPLE that Diane’s health deteriorated suddenly in her last days, which was “heartbreaking” for her loved ones.

Diane Keaton's cause of death

Diane Keaton’s family expressed their gratitude for all the messages that came their way after the passing of The Godfather actress. “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 11 October,” her family said in a statement to PEOPLE.

The statement also mentioned Keaton’s support for animals, and the family urged people to donate to a food bank or an animal shelter in her loving memory. The statement read, “She loved her animals and 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.”

Also read: Diane Keaton ‘was very thin, had lost much weight,’ friend recalls Oscar-winning actress's last moments before 911 call

The source that revealed Keaton’s deteriorating health to PEOPLE also revealed that in her last days, the actress was surrounded by her closest kin, and even “longtime friends” weren’t aware of her condition.

Songwriter Carole Bayer Sager, too, had said in an interview with PEOPLE that she met Diane two or three weeks before her death, and she looked extremely thin.

More about Diane Keaton

As per the NY Post, the Mrs. Soffel actress had previously fought skin cancer and an eating disorder. Steve Martin, Jane Fonda, Candice Bergen, Mary Steenburgen, Mandy Moore, Leonardo DiCaprio, and many others paid a heartfelt tribute to Keaton after her passing away.

The actress was born in 1946 and had two adopted children, Dexter and Duke. Diane never married. Keaton won an Oscar for Best Actress for Annie Hall. She starred in movies like First Wives Club, Father Of The Bride, Baby Boom, among many others.

FAQs

When did Diane Keaton die?

Diane Keaton died on 11 October.

What is the cause of Diane Keaton’s death?

Diane Keaton died of pneumonia.

Did Diane Keaton ever win an Oscar?

Yes, Deane Keaton won an Oscar for the film Annie Hall.

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