No, Kaitlin Olson is not related to Mary-Kate and Ashley Olsen.
- Kaitlin Olson is an actress best known for her role as Dee Reynolds in the TV show It’s Always Sunny in Philadelphia.
- Mary-Kate and Ashley Olsen are twin actresses and fashion designers famous for their work as child stars in shows like Full House and later for their luxury fashion brands.
Despite the similarity in their last names, there is no familial connection between Kaitlin Olson and the Olsen twins.
