Marta Villalpando Wyatt, 59, a leader in Northern Virginia civic and volunteer endeavors who had served since 1989 as executive director of the Hispanic Committee of Virginia, died of a liver ailment May 28 at Georgetown University Hospital. She lived in Fairfax.

Mrs. Wyatt, who had lived in the Washington area since 1984, served as Hispanic services director with the Catholic Charities of the Diocese of Arlington from 1985 to 1989.

She served on the Fairfax County Human Rights Commission from 1989 to 1994, and had served on the boards of the Northern Virginia Area Health Education Center and the Fairfax County Partnerships for Youth organization. She also had served on the minority health advisory committee of the Virginia Health Commission.

From 1987 to 1992, she was president and board member of the Pathways Homes and Pathways Living Inc., which sought to aid mentally-challenged residents. She had served on the board of other Hispanic-related groups and was the recipient of awards from private, civic and government groups.

Mrs. Wyatt was born in Baltimore to Mexican parents. She grew up in Mexico, where she graduated from the Universidad Iberoamericana in 1964 with a degree in philosophy.

In 1964, she married Joseph Paul Wyatt. They lived in the Washington area in the mid-1960s, then he worked for the United Press International news service in Europe and in Florida before they returned to this area in 1984.

In addition to her husband, of Fairfax; survivors include a son, Arthur G., of Alexandria; two daughters, Theresa M. Wyatt Lewis of Arlington, and Martita M. Wyatt of Fairfax; two sisters; and a grandchild.