Julia Elisabeth Lineberger Ramberg, 81, a former resident of Chevy Chase who was active in church, civic, and women's groups, died Thursday at her home in Sparks, Md.

Mrs. Ramberg was born in Gaston County, N.C. She graduated from Hollins College in Virginia and earned a master's degree in Italian literature from Bryn Mawr College.

A former soprano, she studied voice in Italy and Germany before her marriage in Munich in 1930 to Dr. Walter Ramberg, a physicist. The couple moved to this area later that year when Dr. Ramberg became a research associate at the National Bureau of Standards. He was chief of the Bureau's Mechanics Division for 22 years.

In the early 1950s, Mrs. Ramberg served on a committee on desegregation for the Episcopal Bishop of Washington. She was a member of the League of Women Voters and Bryn Mawr and Sulgrave clubs.

From 1959 to 1969, she and her husband lived in Rome, where Dr. Ramberg was a scientific attache at the U.S. Embassy. They later moved to Sparks.

Besides her husband, survivors include a son, Walter Dodd Ramberg, also of Sparks; two daughters, Julia Hall of Vienna, Austria, and Ludy Cadogan of Culworth, England; two brothers, J. Harold and Joseph W. Lineberger, both of Belmont, N.C.; a sister, Frances L. McDonald of Charlotte, N.C., and seven grandchildren.