The 29-year-old told her fans that she made the decision to retire after coming to the realisation that she is no longer capable of competing at her highest level.
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"After 13 years of playing tennis professionally, I have taken the extremely difficult decision to retire from competitive tennis," Ivanovic said in a statement. "This has been a tough decision, but there is so much to celebrate.
"I began dreaming about tennis when I was five years old and saw Monica Seles. My dear parents backed me all the way, and by the time I was ranked #1 in the world in 2008 I had seen highs I'd never dreamed of.
"After 13 years of playing tennis professionally, I have taken the extremely difficult decision to retire from competitive tennis," Ivanovic said in a statement. "This has been a tough decision, but there is so much to celebrate.
"I began dreaming about tennis when I was five years old and saw Monica Seles. My dear parents backed me all the way, and by the time I was ranked #1 in the world in 2008 I had seen highs I'd never dreamed of.