Kardashian, who is set to wed New Jersey Nets basketball player Kris Humphries on August 20, has said that Wang, 62, was her first choice to create the "dream" gown, reports femalefirst.co.uk.
The 30-year-old posted on her blog: "I am so excited to reveal that Vera Wang is my wedding dress designer. Vera has been a close family friend for a long time and we had talked about this moment for years, so when it came to picking my wedding dress designer she was the first person I thought of. No one designs gowns the way she does!
"I know that Vera can make my dream come true and create the most perfect gown for my special day."
Wang also designed Kardashian's sister Khloe's gown.