The 41-year-old actress took to Instagram to shower her husband of six years with love and also praised him for having a great sense of humour and being her support system.
"Six years ago I was lucky enough to marry this wonderful man. He makes me laugh everyday and supports me in everything I do. Happy anniversary, JT! Here's to many more!" wrote the "Big Little Lies" actress.
She shared a photo of the two of them watching a sunset together at a beach with Toth's hand wrapped around her.
Witherspoon was previously married to "Cruel Intentions" co-star Ryan Phillippe but got divorced in 2007.
She has two children - daughter Ava, 17, and son Deacon, 13, from her first marriage.
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