Peter Perl of The Washington Post has won the grand prize for writing in the annual Front Page Awards journalism competition sponsored by the Washington-Baltimore Newspaper Guild.

Five other Post reporters also won awards in individual writing categories. They are Sandra G. Boodman, Karlyn Barker, Sharon LaFraniere, Carla Hall and George Lardner.

Entrants in the 1984 competition for daily newspapers included writers and photographers from The Post, the Baltimore Sun, the Baltimore Evening Sun and the Bureau of National Affairs. Employes at all four publications are represented by the Newspaper Guild.

Lucian Perkins of The Post won the grand prize in photography for "Prom Night." The picture also won first prize in the features category.

In addition to winning the grand prize for writing, Perl's articles "Watching the Work Place" also won the newspaper union's Frank C. Porter Award for labor, business or financial reporting.

Boodman won first prize in the public service category for "Against Their Will," a series on mental health commitment procedures in Northern Virginia.

Barker and LaFraniere won first prize in the investigative category for "The Price We Pay," a series on purchasing problems in the District of Columbia government.

Perl, Boodman, Barker and LaFraniere are all members of The Post's metropolitan staff.

Carla Hall of The Post's Style section won first prize in the features category for articles titled "Apartheid and the Dancer's Anguish" and "Don't Call It Courage."

George Lardner of The Post's national news staff won first prize in national news for "New Ideas Democrat," an article on the presidential candidacy of Sen. Gary Hart (D-Colo.).

Employes of the Evening Sun won three first prizes for writing. They are Wiley Hall III for local news, Mike Klingaman for sports and columnists Jack Germond and Jules Witcover for criticism/commentary.

Dennis McAuliffe of The Post won first prize for headline writing.

In addition to Perkins, photographers for The Post won first prizes in three other categories. James A. Parcell won first prize for national news and Gerald Martineau won in both the pictorial and portrait competitions.

Photographers from the Baltimore Sun won first prizes in three other categories.

Winners will receive plaques, the guild said.