John M. (Jack) O'Grady, 60, a retired State Department Foreign Service officer and an official of the American Institute for Free Labor Development, died Nov. 29 in a hospital in Panama City, Panama, following a heart attack.

Mr. O'Grady, who maintained his residence in Fairfax, was born in Detroit. He graduated from the Sacred Heart Seminary there, earned a master's degree in philosophy at Catholic University and a master's degree in Latin American affairs at Mexico City College.

In 1952, he joined the Labor Department and was assigned to migrant worker programs in Mexico and California. He joined the Foreign Service in 1960 and was a labor attache in Honduras, Colombia and Mexico. From 1972 until he retired in 1979, he was a State Department adviser on Latin American labor questions.

After leaving the government, he went to work for the Institute for Free Labor Development, which is affiliated with the AFL-CIO. He was its representative in Panama at the time of his death.

Survivors include his wife, Alice, of Fairfax; three sons, John Michael Jr. and Richard Edward, both of Fairfax, and Daniel, of Charlottesville; a brother, the Rev. Edward O'Grady of Hillsdale, Mich., and a sister, Kathleen King of Rogers, Ark.