Valedictorian is an academic title for the highest-performing student of a graduating class of an academic institution.

The valedictorian is commonly determined by a numerical formula. Generally an academic institution's grade point average (GPA) system is used, but other methods of selection may be used or factored in such as volunteer work or extra-curricular activity.

The term is an Anglicised derivation of the Latin vale dicere ("to say farewell"), historically rooted in the valedictorian's traditional role as the final speaker at the graduation ceremony commencement before the students receive their diplomas. The valedictory address, also known as the valediction, is generally considered a final farewell to classmates, before they disperse to pursue their individual paths after graduating.

The term is not widely used outside the United States, Canada, Kuwait, Egypt, and the Philippines, although some countries may award equivalent titles. In Australia, the title is sometimes awarded to a member of a graduating university class on the basis of a contribution to the school rather than academic success. The highest-ranking student in a graduating class is often referred to as dux (Latin for "leader"), and may or may not give a speech. In France the term Major de promotion ("first in class") is used, although the term is not related to any ceremonial role, as there are rarely graduation ceremonies in schools or universities.