Jenner revealed the name on Instagram Tuesday with a photo of her newborn daughter gripping her finger and a caption that simply said: "stormi".
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The reality TV star announced on social media Sunday that she had given birth to a "beautiful and healthy baby girl" on February 1.
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"Pregnancy has been the most beautiful, empowering, and life-changing experience I've had in my entire life and I'm actually going to miss it," she told her millions of followers.
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Jenner, 20, has not publicly identified the baby's father. She is known to be in a relationship with rapper Travis Scott.
The CNNWire contributed to this report.