Es, ES, or similar may refer to:
Estonia (Estonian: Eesti [ˈeːsti] ( listen)), officially the Republic of Estonia (Estonian: Eesti Vabariik), is a sovereign state in Northern Europe.
Escherichia coli (; also known as E. coli) is a Gram-negative, facultative aerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms).
An essay is, generally, a piece of writing that gives the author's own argument — but the definition is vague, overlapping with those of a paper, an article, a pamphlet, and a short story.
Espionage or spying, is the act of obtaining secret or confidential information without the permission of the holder of the information.
Esophageal cancer is cancer arising from the esophagus—the food pipe that runs between the throat and the stomach.