Top administrative leaders of the nation's umbrella organizations of Roman Catholics, Protestants and Jews have protested priorities in the proposed 1980 national budget, which they say increase military spending at the cost of human services.

"We are deeply concerned about recent administration statements which suggest that the federal budget for fiscal year 1980 will permit the reduction of human services programs while allowing real growth of 3 prcent in defense spending," the religious leaders wrote President Carter this week.

Signing the letter were Bishop Thomas C. Kelly, general secretary of the National Conference of Catholic Bishops; Claire Randall, general secretary of the National Council of Churches, and Rabbi Daniel F. Polish, acting executive vice president of the Synagogue Council of America.

The religious leaders particularly objected to proposed cuts in the CETA program, a federally funded effort to recruit, train and place currently unemployed individuals. "In view of the projected increase in unemployment during 1979, such action is trafic," the religious leaders said.

They also scored "the deep cuts proposed for domestic spending," particularly in the areas of public housing, nutrition and rent subsidy.

"We reject as unjust an economic policy which propose to fight inflation at the expense of the most vulnerable of our citizens," the religious leaders said in their letter.

While praising the president "in the many areas where you have given impressive and courageous leadership," they urged him to "reconsider decision to increase the defense budget at the expense of the domestic programs."

The Carter administration has been particularly zealous in seeking support of religious groups for both domestic and foreign policies.

The executives of the three organizations who signed the letter meet periodically to share concerns common to the religious communities they represent.