The beauty, a former judge on Tyra Banks' America's Next Top Model, bumped into Wintour at the AmFAR benefit in New York on Wednesday night (10Feb10), but was stunned when the editor-in-chief failed to recognise her despite their Vogue cover collaborations.
And Porizkova has taken to her Huffington Post blog to lash out at the fashion boss.
She writes: "I walked in (the bathroom) and almost straight into Anna Wintour. 'Hi, Anna,' I said brightly to Anna's mirror reflection. Her large eyes in her large head flickered. And with the slightest nod, one that may have been a twitch, she left me standing at the sinks.
"I admit I felt a bit more than slighted, I was after all, on quite a few covers of her magazine, and the glance she gave me is one I'd give to an expired carton of milk. I am aware my expiration date (as a model) is long past, but a slight acknowledgement that I wasn't the bathroom attendant would have been nice."