Skip to content
CFOTD
Birthday certificateFind any birthdayBirthdays todayBirthday certificateSee all: BirthdaysAll A to ZActorsSingersSee all: CelebritiesWebsite of the dayFansite directorySubmit a fansiteSee all: FansitesGuess WhoGuess the AgeOlder or younger?See all: Play
Sienna Guillory

Photo: Ibsan73, CC BY 2.0, via Wikimedia Commons

Actor

Sienna Guillory

British actress

Sienna Guillory is 51 years old, born on March 16, 1975 in Kettering.

Next birthday in 132 days, turning 52.

Send a birthday wish

Born
March 16, 1975, Kettering
Age
51
Zodiac sign
Pisces
Country
United Kingdom
Known as
Actor

Official links: Instagram · X · Wikipedia

✏️ Suggest an edit

Sienna Guillory fansites

Add a fansite →

No Sienna Guillory fansites listed yet. Run one? Submit it and it could be the Fansite of the Day.

Sienna’s birthday, by the numbers

  • Sienna Guillory was born on a Sunday.
  • Sienna Guillory has been alive for about 18,861 days.
  • Their 20,000-day milestone falls on December 17, 2029.
  • Their next birthday, turning 52, is on a Tuesday.
  • Next milestone: Sienna Guillory turns 60 on March 16, 2035, in 8 years and 4 months. More milestone birthdays
  • Sienna Guillory is younger than 3,091 and older than 3,755 of the living celebrities on CFOTD.
  • Half birthday: September 16. Birthstone: Aquamarine and bloodstone.
  • Sienna Guillory belongs to Gen X.

Age gaps

Born within weeks of Sienna

Preity ZintaActor · January 31, 1975Eva LongoriaActor · March 15, 1975Drew BarrymoreActor · February 22, 1975FergieSinger · March 27, 1975Gary NevilleSoccer player · February 18, 1975will.i.amRapper · March 15, 1975

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

Share Sienna Guillory’s birthday, March 16?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 March 16⭐Birthday twin cardA square card to share

Also born on March 16

All →
Alexandra DaddarioActor · Age 40Theo WalcottSoccer player · Age 37Bernardo BertolucciFilm director · (1941 to 2018)Jerry LewisComedian · (1926 to 2017)Isabelle HuppertActor · Age 73Blake GriffinBasketball player · Age 37

Also born in 1975

All →
David BeckhamSoccer player · May 2Enrique IglesiasSinger · May 8Charlize TheronActor · August 7Bradley CooperActor · January 5Kate WinsletActor · October 5SiaSinger · December 18

Birthday wishes from fans

Send Sienna Guillory a birthday wish, or tell other fans why you love their work. The first good one goes right here.

Post my wish

We read every wish before it goes live. No links, please, and nothing personal about other people.

🎂 Never miss a birthday

Get an email before Sienna Guillory’s birthday, and for any other stars you follow.

Get birthday alerts

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 Sienna Guillory?

Sienna Guillory is 51 years old, born on March 16, 1975 in Kettering.

What is Sienna Guillory’s zodiac sign?

Pisces, born March 16.