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Mark Harmon

Photo: Jerry Avenaim, CC BY-SA 3.0, via Wikimedia Commons

Actor

Mark Harmon

American actor

Mark Harmon is 75 years old, born on September 2, 1951 in Burbank.

Next birthday in 301 days, turning 76.

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Born
September 2, 1951, Burbank
Age
75
Zodiac sign
Virgo
Country
United States
Known as
Actor

Official links: Wikipedia

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Mark’s birthday, by the numbers

  • Mark Harmon was born on a Sunday.
  • Mark Harmon has been alive for about 27,458 days.
  • Their 30,000-day milestone falls on October 21, 2033.
  • Their next birthday, turning 76, is on a Thursday.
  • Next milestone: Mark Harmon turns 80 on September 2, 2031, in 4 years and 10 months. More milestone birthdays
  • Mark Harmon is younger than 765 and older than 6,081 of the living celebrities on CFOTD.
  • Half birthday: March 2. Birthstone: Sapphire.
  • Mark Harmon belongs to Baby Boomers.

Age gaps

Born within weeks of Mark

Robin WilliamsActor · July 21, 1951StingMusician · October 2, 1951Mark HamillActor · September 25, 1951Michael KeatonActor · September 5, 1951Louis van GaalSoccer player · August 8, 1951Paul BreitnerSoccer player · September 5, 1951

Days and weekdays are worked out from the birth date. Compare Mark’s age with anyone.

Share Mark Harmon’s birthday, September 2?Make something for yourself or a birthday friend.
🏅Birthday certificateAdd a name, download a PDF or image🎂Printable birthday pageA free one-page PDF for September 2⭐Birthday twin cardA square card to share

Also born on September 2

All →
Keanu ReevesActor · Age 62Salma HayekActor · Age 60Emiliano MartínezSoccer player · Age 34Carlos ValderramaSoccer player · Age 65Javi MartínezSoccer player · Age 38ZeddMusician · Age 37

Also born in 1951

All →
Robin WilliamsActor · July 21StingMusician · October 2Phil CollinsMusician · January 30Mark HamillActor · September 25Bonnie TylerSinger · June 8Michael KeatonActor · September 5

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Birth dates and details from Wikidata (checked October 15, 2026, newest names added October 27, 2026). Ages update every day. Photos are freely licensed and credited on each profile. How we build this site · Report a mistake

Frequently asked questions

How old is Mark Harmon?

Mark Harmon is 75 years old, born on September 2, 1951 in Burbank.

What is Mark Harmon’s zodiac sign?

Virgo, born September 2.