Dr. Philip Y. Wyatt, 77, a retired dentist in Fredericksburg, Va., who was also active in civil rights organizations, died of a stroke Oct. 22 at the Mary Washington Hospital in Fredericksburg.

Dr. Wyatt, who lived in Fredericksburg, was born in Charlottesville. He graduated from Virginia State College and earned his degree in dentistry from Howard University. He began his dental practice in Fredericksburg in 1933. He retired in 1983.

He was a past president of the Fredericksburg branch of the National Association for the Advancement of Colored People. He also was past president and vice president of the Virginia NAACP.

Dr. Wyatt had been cochairman of the Fredericksburg Biracial Commission, a member of the Virginia State Advisory Committee to the U.S. Commission on Civil Rights, and the 8th District representative of a statewide black political action group, the Crusade for Voters Committee of Virginia.

In addition, he was a deacon at Shiloh Baptist Church, a past president of the Virginia State Baptist Training Association, and the Old Dominion Dental Society.

Survivors include his wife, Minnie, of Fredericksburg; a daughter, Shirley Mundle of Washington; two sons, Philip III, of Landover, and Kenneth of Kansas City; two sisters, Ruth Wyatt Coles, of Charlottesville, and Louise Wyatt Moore of Louisville, Ky., and six grandchildren.