Salutatorian was the title given to the second highest graduate from a school.
In 2368, Julian Bashir became salutatorian of his graduation class from the Starfleet Medical Academy. Elizabeth Lense was valedictorian. (DS9: "Explorers")
One year later, Doctor Bashir told the story of his exam and how he became a salutatorian to a Bajoran woman he dated at the replimat. (DS9: "Q-Less")