Alan A. Rubin, president of the Wolf Trap Foundation, will leave the performing arts organization soon, according to sources there. The 52-year-old Rubin has headed Wolf Trap for less than a year.

"There's a process of parting the ways," said a top Wolf Trap official, who did not want to be named. "Right now there is all sorts of back-and-forth negotiations about it."

Wolf Trap officials referred questions on the matter to John L. McLucas, chairman of the Wolf Trap board. McLucas was unavailable late yesterday afternoon. Rubin refused to comment.

Reasons for Rubin's leaving are unclear. He came to Wolf Trap last March 15 after 16 years as president of Partners of the Americas, a private voluntary organization for economic and social development. When he was selected last December, Rubin said an initial priority was to pay off the $18 million debt on the new Filene Center, built after the old structure was destroyed by fire in 1982.

It is widely thought within the organization that Rubin, who had no performing arts background, was selected for his managerial skills. In September, Francis Rizzo, former artistic director of the Washington Opera, was signed to a three-year contract in the new position of artistic consultant, which carried with it a strong role in programming. Rizzo had worked at Wolf Trap from 1972 to 1979 as artistic administrator.

There have been only two presidents before Rubin -- founder and benefactor Catherine Filene Shouse and Carol V. Harford -- but there has been considerable turnover in other high-level jobs at the foundation. Former executive vice president Edward Corn left Wolf Trap in 1982 after a year, citing a "shift in priorities" at the performing arts park. He was replaced by Edward Mattos, who also left in less than a year after he had "come to the conclusion that I am simply not the man for the job."