how old is mariel hemingway

Mariel Hemingway is 64 years old as of February 2026.

She was born on November 22, 1961, in Mill Valley, California (often more broadly referenced as being born in California). Since her birthday is in November, she turned 64 on November 22, 2025, and will turn 65 on November 22, 2026.

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