Diane Keaton has two adopted children, and as of early 2026 they are in their late 20s and mid 20s.

Ages of Diane Keaton’s Adopted Children

Most recent public reports about her family state that:

  • Her daughter Dexter Keaton (Dexter Keaton White) was born on December 15, 1995, and is described as being 29 years old in 2025, which makes her about 30 in early 2026.
  • Her son Duke Keaton was born on February 8, 2000, and is reported as 25 years old in 2025, which makes him about 25 turning 26 in 2026.

These ages come from recent biographical pieces and obituaries that discuss Diane Keaton’s life and her two children, both of whom she adopted in her 50s.

Information gathered from public forums or data available on the internet and portrayed here.