Claire van der Boom (born 1983) is a Logie Award winning Australian actress. Of Dutch ancestry, she first became known to Australian audiences for her roles in the TV series Love My Way and East West 101. In 2008, she starred in the Australian neo-noir thriller The Square. Internationally, she is best known for her appearance as Stella Karamanlis in the HBO miniseries The Pacific, and her recurring role playing the ex-wife of Det. Danny Williams in the 2010 remake of Hawaii Five-O.
Van der Boom was born in Broome, Western Australia. She attended Presbyterian Ladies' College in Perth, where she studied drama, graduating in 1999. She also graduated from Sydney's National Institute of Dramatic Art (NIDA) in 2005.
Following graduation, van der Boom appeared in the Australian TV series Love My Way and East West 101. Her first major role in a feature film was in The Square, opposite Joel Edgerton and directed by Nash Edgerton. It premiered at the Sydney Film Festival in June 2008. It was released in the US in 2010 by Apparition (company).