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Katherine Moennig

Photo: The White House, Public domain, via Wikimedia Commons

Actor

Katherine Moennig

American actress (born 1977)

Katherine Moennig is 48 years old, born on December 29, 1977 in Philadelphia.

Next birthday in 54 days, turning 49.

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Born
December 29, 1977, Philadelphia
Age
48
Zodiac sign
Capricorn
Country
United States
Known as
Actor

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Katherine’s birthday, by the numbers

  • Katherine Moennig was born on a Thursday.
  • Katherine Moennig has been alive for about 17,843 days.
  • Their 20,000-day milestone falls on October 1, 2032.
  • Their next birthday, turning 49, is on a Tuesday.
  • Next milestone: Katherine Moennig turns 50 on December 29, 2027, in 1 year and 1 month. More milestone birthdays
  • Katherine Moennig is younger than 3,451 and older than 3,395 of the living celebrities on CFOTD.
  • Half birthday: June 29. Birthstone: Turquoise, tanzanite and zircon.
  • Katherine Moennig belongs to Gen X.

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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 Katherine Moennig?

Katherine Moennig is 48 years old, born on December 29, 1977 in Philadelphia.

What is Katherine Moennig’s zodiac sign?

Capricorn, born December 29.