Olympic swimmer Rebecca confirmed their separation in a statement, where she explained that she and Harry will "remain close friends".
The couple, who married in August 2014 in Staffordshire, are parents to daughter Summer, who was born in June 2015.
The statement read: "It's after much thought and sadness that we confirm our separation. It is on amicable terms and we still remain close friends. We move forward with respect for one another and our focus and commitment is on parenting our gorgeous daughter Summer. This will be our only comment on this private matter. Becky and Harry."
Rebecca won two gold medals at the Beijing Olympics in 2008 and two bronzes at London 2012. She headed into the Australian jungle for I'm A Celebrity... Get Me Out Of Here! in 2013.
More recently, Rebecca was a contestant on Channel 4's The Jump but was forced to withdraw from the competition after sustaining a shoulder injury.
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