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Oprah Winfrey yesterday got spitting mad when asked if she would undergo DNA testing to learn the identity of her biological father.

"I will not be taking a paternity test, ever!" the usually unflappable talk-show queen snapped to The Post outside the Four Seasons hotel in Manhattan.

Norh Robinson, an 84-year-old Navy vet who lives in a VA hospital, had told The Post over the weekend that he is the billionaire superstar's real father.

He is from Kosciusko, Miss., the sleepy rural town that Winfrey ditched at age 6.

But Winfrey said yesterday, "I've never heard of him. I know who is claiming to be my real father.

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Robinson has insisted that he wants nothing to do with Oprah's vast fortune -- and only wants to meet his alleged daughter before dying.

But Winfrey -- asked what Robinson could possibly gain by lying about her lineage -- only further barked, "Get out of my face!" before pushing the Post reporter aside to jump into an SUV and head for lunch.

Winfrey was in town to attend the Matrix Awards luncheon at the Waldorf Astoria, honoring women in communications. She was the presenter for longtime pal Gayle King.

During her presentation, a rankled Winfrey appeared to even mock the ailing Robinson.

"Last week was a rough week for Gayle [King] when a so-called biography came out," Winfrey said, referring to the unauthorized tome by Kitty Kelley. "Every day, she's getting herself more and more worked up about all of my new daddies that are now showing up. New daddies who are saying, 'Hello daughter, call me, I need a new roof.' Well, this too shall pass."

Oprah was raised by mom Vernita Lee, 75, and Lee's longtime boyfriend, Vernon Winfrey. Winfrey considers Vernon her father but has reportedly conceded that he's not her biological dad.

Last week, the National Enquirer first reported Robinson's alleged shared genetics with Winfrey.

Winfrey was born in January, 1954, so Lee, now 75, would have been barely 18 when she conceived the future TV powerhouse.

"[Lee] told me she was grown, but I don't know how old she was," Robinson said. "I should have waited and found out before I went as far as I did with her."

Asked if he ever loved Oprah's mom, Robinson said: "As a friend."

Robinson claims that he mailed a heartfelt letter to Winfrey several years ago, asking to meet her and offering to take a paternity test.

The ailing vet said he included his Social Security number and a picture of himself from his Navy days. But Winfrey, he said, never responded.