The 29-year-old and her real estate beau have been together for almost two years.
Claire announced their engagement on Instagram writing, "my heart is so full," alongside a photo of Joblon giving her a kiss.
This is Holt's second wedding, she was previously married to Matthew Kaplan.
Holt is best known for portraying Rebekah Mikaelson on The Vampire Diaries and has reprised the same role on The Originals since 2013.
