Marshall Manning is 14 years old as of March 2026.

He was born on March 31, 2011, and multiple recent sports pieces and features on Peyton Manning’s family note that Marshall Williams Manning is 14 in coverage published in March 2026. Given today’s date in March 2026 and his March 2011 birthdate, that makes him 14 years old right now.

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