The Cardinal Newman Society, which keeps track of these things, has compiled a list of speakers at Catholic colleges who violate Catholic teachings:

At least nine Catholic colleges and universities in the U.S. have invited spring commencement speakers and/or honorary degree recipients whose public positions and actions are clearly at odds with fundamental Catholic teachings, The Cardinal Newman Society (CNS) announced as part of its annual commencement review.??

“The U.S. bishops have stood publicly and in unison against Catholic honors for those who publicly and clearly oppose Catholic teaching, most dramatically in response to last year’s Notre Dame ceremony,” said Patrick J. Reilly, President of The Cardinal Newman Society, which sponsored the online petition against Notre Dame’s honor to President Barack Obama that garnered more than 367,000 signatures.??

“It remains a dark stain on those Catholic colleges and universities that would persist in undermining the Catholic faith at their commencement ceremonies for the sake of publicity and prestige, whether by handing out degrees or honoring individuals with commencement platforms,” Mr. Reilly said. “On the other hand, it appears that more than 95 percent of our Catholic college leaders this year have taken the high road, and Catholics should applaud that.”??

CNS has publicly identified Catholic institutions that choose commencement speakers and honorary degree recipients whose public actions and statements are contrary to key teachings of the Catholic Church. Recent years have seen a marked decline in these scandals, from 24 in 2006 to just nine in 2010.??In 2009, at least 11 commencement scandals occurred despite the unprecedented public opposition of 83 U.S. bishops to the University of Notre Dame’s honor for President Obama. ??

Most of the protesting bishops referenced the 2004 United States Conference of Catholic Bishops (USCCB) statement “Catholics in Political Life,” which reads: “The Catholic community and Catholic institutions should not honor those who act in defiance of our fundamental moral principles. They should not be given awards, honors or platforms which would suggest support for their actions.”??

If you read on at the link, you’ll find a list of some speakers and their stands on various issues.