ESAG

ESAG may refer to:
 * École Suisse d'Archéologie en Grèce (Swiss School of Archaeology in Greece)
 * École supérieure de design, d'art graphique et d'architecture intérieure (Penninghen school or ESAG Penninghen), a high school in Paris
 * Expression site associated gene, a gene found in the bloodstream expression site of the variable surface glycoproteins of the sleeping sickness parasite, Trypanosoma brucei
 * Eksperimentinė sportinės aviacijos gamykla (Lithuanian glider manufacturer later privatized as Sportinė Aviacija)