The following is a list of high school seniors at District of Columbia schools who have been named semifinalists in the annual competition for National Merit Scholarships. The students are among 15,000 selected nationwide on the basis of scores on the Preliminary Scholastic Aptitude Test, taken by 1.1 million high school juniors last year.

Those who qualfied are the highest scorers in each state and the District of Columbia, and represent one-half of 1 percent of the senior class within their state or the District. To win one of the 5,300 Merit college scholarships, awarded by colleges, companies and the National Merit Scholarship Corporation, the semifinalists are required to take a second examination this fall and to submit high school grades, information on their accomplishments and goals, and recommendations from principals. Georgetown Day School

Alfredo F. Apolloni, David J. Kohn, Jonathan D. Kulick, Nicholas I. Martin, David S. Reynolds, Matthew R. Rubenstein, David Trubatch, Carol A. Waldmann. Gonzaga College High School

Brian E. Casey. Immaculata Preparatory School

Joy M. Behrens, Maureen A. Holohan, Jenifer M. Potemra. Maret School

William C. Gifford, Kevin G. Kenety. National Cathedral School

Sarah L. Allen, Julie T. Dyson, Lisel Loy, Alexandria A. Ruttenberg, Alexandra J. Wallace, Michelle L. Washington. Sidwell Friends School

Michael N. Bacon, Alac W. Bartsch, Juliet E. Bryant, Ciara A. Burnham, Anthony P. Daniels, Susannah T. French, Arlen S. Heginbotham, Jennifer E. Horne, Nicole S. Lambert, Johathan E. Martin, Carolyn K. Montgomery, Andrew N. Solmssen, Sarah L. Szanton. St. Alban's School

Charles E. Allen, James D. Bennet, David S. Graham, Jay W. Harris, Frank J. Menetrez, William L. Oakley, Matthew E. Potter, Stephen K. Sacks, Michael W. Sexton. St. Anselem's Abbey School

Andrew D. Cutler, Donald G. Jackson, Francis J. Kelly, Joseph J. Shiang, Andrew J. Sullivan, Joseph J. Zorc. Washington International School

Sara R. Johnson. Woodrow Wilson Senior High Schol

Erica V. Breneman, Anne T. Cheilek, Michael B. Smith.