Speaker John A. Boehner, a Republican who grew up in a Roman Catholic family in Ohio, is scheduled to give the commencement address on Saturday at the Catholic University of America in Washington, a prestigious setting in church circles for its affiliation with the nation’s bishops.

But now Mr. Boehner is coming in for a dose of the same kind of harsh criticism previously leveled at some Democrats — including President Obama — who have been honored by Catholic universities: the accusation that his policies violate basic teachings of the Catholic Church.

More than 75 professors at Catholic University and other prominent Catholic colleges have written a pointed letter to Mr. Boehner saying that the Republican-supported budget he shepherded through the House will hurt the poor, the elderly and the vulnerable, and that he therefore has failed to uphold basic Catholic moral teachings.

“Mr. Speaker, your voting record is at variance from one of the church’s most ancient moral teachings,” the letter says. “From the apostles to the present, the magisterium of the church has insisted that those in power are morally obliged to preference the needs of the poor. Your record in support of legislation to address the desperate needs of the poor is among the worst in Congress. This fundamental concern should have great urgency for Catholic policy makers. Yet, even now, you work in opposition to it.”