Is Robert P. George Jewish?

No. Robert P. George, a Princeton University professor of jurisprudence and a Roman Catholic who is this country’s most influential conservative Christian thinker, is not a Jew.

According to the article by DAVID D. KIRKPATRICK, "The Conservative-Christian Big Thinker," in the Times Magazine, George's wife Cindy is Jewish.

...George’s left-leaning colleagues say he is unfailingly polite and even helpful. He co-teaches­ a great-books seminar with the African-American scholar Cornel West, who told me he thinks of George as “just a nice brother.” George and his wife, Cindy, who is Jewish, socialize with liberal professors. But his relationships with other Catholic scholars are sometimes more contentious, especially about politics...