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Aidan Gallagher

Photo: Foreign and Commonwealth Office, CC BY 2.0, via Wikimedia Commons

Actor

Aidan Gallagher

American actor

Aidan Gallagher is 23 years old, born on September 18, 2003 in Los Angeles.

Next birthday in 317 days, turning 24.

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Born
September 18, 2003, Los Angeles
Age
23
Zodiac sign
Virgo
Country
United States
Known as
Actor

Official links: Official website (aidanrgallagher.com) · Instagram · X · YouTube · Wikipedia

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Aidan’s birthday, by the numbers

  • Aidan Gallagher was born on a Thursday.
  • Aidan Gallagher has been alive for about 8,449 days.
  • Their 10,000-day milestone falls on February 3, 2031.
  • Their next birthday, turning 24, is on a Saturday.
  • Next milestone: Aidan Gallagher turns 25 on September 18, 2028, in 1 year and 10 months. More milestone birthdays
  • Aidan Gallagher is younger than 6,647 and older than 199 of the living celebrities on CFOTD.
  • Half birthday: March 18. Birthstone: Sapphire.
  • Aidan Gallagher belongs to Gen Z.

Age gaps

Born within weeks of Aidan

Bella RamseyActor · September 25, 2003Rayan CherkiSoccer player · August 17, 2003Alejandro BaldeSoccer player · October 18, 2003Jack Dylan GrazerActor · September 3, 2003Joe LockeActor · September 24, 2003Quvenzhané WallisActor · August 28, 2003

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

Share Aidan Gallagher’s birthday, September 18?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 18⭐Birthday twin cardA square card to share

Also born on September 18

All →
Anna NetrebkoSinger · Age 55RonaldoSoccer player · Age 50Greta GarboActor · (1905 to 1990)James GandolfiniActor · (1961 to 2013)Jada Pinkett SmithActor · Age 55Christian PulisicSoccer player · Age 28

Also born in 2003

All →
Jude BellinghamSoccer player · June 29Joao GrimaldoSoccer player · February 20Tate McRaeSinger · July 1Jamal MusialaSoccer player · February 26Carlos AlcarazTennis player · May 5JoJo SiwaSinger · May 19

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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 Aidan Gallagher?

Aidan Gallagher is 23 years old, born on September 18, 2003 in Los Angeles.

What is Aidan Gallagher’s zodiac sign?

Virgo, born September 18.

Does Aidan Gallagher have an official website?

Yes: aidanrgallagher.com.