Class of 2327
The Class of 2327 or the Class of '27 was a graduating class of cadets at the San Francisco campus of Starfleet Academy in the year 2327.
Jean-Luc Picard was a member of this class, and this class was mentioned in Picard's certificate from the Speed of Light Club. (PIC: "Remembrance") He was also the class's Valedictorian. (TNG: "Samaritan Snare") Other members of this class included Marta Batanides and Cortan Zweller. (TNG: "Tapestry")
When Picard thought he was reintroducing himself to Boothby on the Academy grounds in 2367, he introduced himself, "Jean-Luc Picard, Class of '27," Boothby, however, immediately knew who he was, and asked, "What happened to your hair?" (TNG: "The First Duty")