Happy birthday! Kaitlin Olson turns 51 today

  • By Lori Macatee
  • Washington
  • Last updated on

The iconic and legendary actress turns 51 on Tuesday, Aug. 18, 2026.
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Kaitlin Olson is celebrating her 51st birthday today. As a number of online tributes attest, she is one of the most acclaimed actresses of her generation.

Popular actress Kaitlin Olson (It's Always Sunny in Philadelphia, ...) has always liked to keep a bit of herself hidden from view. At 51st birthday, she remains a woman of many facets.

Olson, a cultural icon

Born in Tigard on August 18, 1975, Kaitlin Olson's career spans an arc over many different eras and tastes in American history. Olson's not just a great actress, she's an inspiration, an icon and a successful business woman. At this point in her career, there seems to be little Kaitlin hasn't done.

And we've got a feeling the next 12 months are going to be even bigger and better for Kaitlin Olson as she promises more to come. After all, she's only 51.

Happy Birthday, Kaitlin, you're the best!

Kaitlin Olson career in pictures

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