Jason Segel is 46 years old as of 2026.

Quick Scoop

  • Jason Segel was born on January 18, 1980, in Los Angeles, California.
  • That birthdate makes him 46 years old in 2026.
  • He’s best known for playing Marshall Eriksen on How I Met Your Mother and starring in movies like Forgetting Sarah Marshall and The Muppets.

Little timeline-style note

  • 1980: Born in Los Angeles.
  • 1999–2000: Breakthrough on Freaks and Geeks.
  • 2005–2014: Plays Marshall on How I Met Your Mother.
  • 2008 onward: Leads and writes hit comedies like Forgetting Sarah Marshall.

Fans on forums often phrase it simply as: “Jason Segel is in his mid-40s now, still that tall, funny guy from How I Met Your Mother.”

TL;DR: Jason Segel’s birthday is January 18, 1980, which makes him 46 years old in 2026.

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