Sean McDermott, the Buffalo Bills head coach, is 51 years old as of early 2026.

Quick Scoop

  • Sean McDermott was born on March 21, 1974, in Omaha, Nebraska.
  • That birthdate makes him 51 years old in 2026.
  • He has been the head coach of the Buffalo Bills since 2017 and remains one of the more established coaches in the current NFL landscape.

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