The tiny stilettos, called Heelarious, are intended for babies up to six months and come in hot pink, black and leopard print.
Britta Bacon and Hayden Porter, the American inventors of the footwear, said the heels are only for show and will collapse if any pressure is put on them.
Christopher Cloke, head of child protection awareness at the NSPCC, said: "This is part of a worrying trend of inappropriate clothing being marketed at young children."
Miss Bacon said she hit upon the idea for the shoes while walking to her daughter Kayla's 4th birthday party. She said: "It would have been hilarious if I could have brought Kayla to a party in high heels when she was a baby."
The $35 (Â£17.80) shoes, which come in six different styles named after the inventors' children, are on sale at over 50 stores in America, Canada and Switzerland. British parents can purchase them from internet retailers.
In April supermarket giant Tesco was criticized for launching padded bras for girls as young as seven. The "bust-booster" bra, which costs Â£4, was sold alongside vests in the supermarket's seven to eight-year-old range.
It was the latest embarrassment for Tesco, which in 2006 removed a pole dancing kit from sale after being accused of "destroying children's innocence".
Asda was also condemned for marketing black lacy underwear to nine-year-old girls.
Last year the Archbishop of Canterbury, Dr Rowan Williams, said children were being psychologically damaged by inappropriate "sexy" clothing and toys.