The 31-year-old double Olympic and double world champion announced the news after winning her national title in Moscow’s Luzhniki arena.
"My career will come to its end at the world championships," Isinbayeva said.
"For me it will be a really nostalgic moment. I want to enjoy a joyful finish to my career and will show my best at the world championships.
"At the worlds I will fight with the height and myself. It was here in Luzhniki that I won my first title and here my career will come to an end.
"I expect huge support from my fans at the event... I’m ready to battle for the win."
Isinbayeva won gold at Athens 2004 and Beijing 2008 and has set 28 pole vault world records, including the current mark of 5.06 metres, but could only manage bronze at London 2012.
That was set in Zurich in August 2009.
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