"We are heartbroken beyond words at the loss of our beautiful, talented and determined Bally," said husband Nino Severino, who was also her coach.
Baltacha learned she had liver cancer in mid-January 2014, two months after retiring from professional tennis and only a few weeks after marrying.
"She was an amazing person and she touched so many people with her inspirational spirit, her warmth and her kindness," added Severino