Seven Prince William County high school students have been named semifinalists in two national scholarship programs, Prince William County school officials said.

Woodbridge High School seniors Wesley W. Cooper, Brian J. Hairston and Taunya L. Martin were selected as semifinalists in the National Achievement Scholarship Program for Outstanding Black Students. Kenny Alston, a senior at Thomas Jefferson High School, also was honored, according to county school spokeswoman Irene Cromer.

Woodbridge seniors Jennifer M. Olalde and Diana M. Saliceti were named semifinalists for the 1990-1991 National Hispanic Scholarship Awards Program. Gustavo Durand, a senior at Osbourn Park High School and a National Merit semifinalist, also has been named to the National Hispanic Scholarship Awards list.

"We are very proud of these students," said School Superintendent Edward L. Kelly. "Anything you can do to give recognition and congratulations to students serves a positive purpose. Everybody likes to feel good about themselves and to achieve, and when that is recognized, it has to help their confidence."

Cooper, a member of the Beta Club and National Honor Society who is also active in his school's German Honor Society, is an avid basketball player who has participated in his school's freshman, junior varsity and varsity teams.

Hairston belongs to the Beta Club, the National Honor Society, the Spanish Honor Society and the French Honor Society and was awarded the Delta Sigma Theta sorority academic achievement award in math.

Martin was selected president of her class by her peers in her sophomore, junior and senior years. She also participated in the Virginia Governor's School for Drama.

Alston is treasurer of the Thomas Jefferson High School Octagon Club, is active in his school's theater program and belongs to the National Honor Society.

The semifinalists in the black student achievement program scored in the upper 6 percent of the 90,000 black students who requested consideration when they took the 1989 Preliminary Scholarship Aptitude Test/National Merit Scholarship Qualifying Test. The program is sponsored by the National Merit Scholarship Corp.

The honorees in the Hispanic student achievement program were among 3,000 students chosen on the basis of their PSAT/NMSQT scores last fall. Five hundred Hispanic finalists chosen from the semifinalist list will receive $1,500 college scholarships from a Washington-based organization called The College Board, which administers the program through a grant from the Andrew W. Mellon Foundation, school district officials said.

Olalde attends school while working part time and is a member of the Beta Club and the Junior National Honor Society. Saliceti, a member of Woodbridge's Beta Club and the National Honor Society, is a volunteer emergency medical technician and firefighter for the Occoquan, Woodbridge and Lorton volunteer fire department, and works part time with geriatric patients.

Durand belongs to the National Honor Society, the French Honor Society and the Spanish Honor Society. He was one of 15 students chosen in the state National Aeronautics and Space Administration internship sponsored through the Virginia Governor's School in Richmond.