Claudine Lewis Mitchell, 59, a guidance counselor at Dunbar High School in Washington, died Jan. 13 at National Orthopaedic & Rehabilitation Hospital after a heart attack. She lived in Arlington.

She joined Dunbar as a business teacher in 1952 and then became a guidance counselor there. In 1980, she also taught evening classes at the University of the District of Columbia.

Mrs. Mitchell served as treasurer of the Dunbar Parent-Teachers Association for 27 years. She was a member of the D.C. School Counselors Association, the Washington Teachers Union, the American Personnel and Guidance Association, and the National Vocational Guidance Association. She belonged to St. John's Baptist Church in Arlington.

Mrs. Mitchell was a native of Hutchinson, Kan. After graduating from Hampton Institute in Hampton, Va., she moved to Washington in 1947 to attend Howard University, and earned a master's degree there in 1949.

Survivors include her husband, Garland, two daughters, Claudia and Garolyn, and a stepdaughter, Pearline, all of Arlington; a stepson, Garland R., of Columbia; two sisters, Yvonne L. Franklin of Hempstead, N.Y., and Jean Ann Harris of Dudley, N.C.; two brothers, Claude P. Lewis Jr. of New York City, and Charles R. Lewis of Minneapolis, and two grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Dunbar-Claudine L. Mitchell Scholarship Fund, Dunbar High School, 1301 New Jersey Ave. NW, Washington, 20001.