KE, ke, and variations may refer to:
Ketamine, sold under the brand name Ketalar among others, is a medication mainly used for starting and maintaining anesthesia.
Kentucky ( (listen) kən-TUK-ee), officially the Commonwealth of Kentucky, is a state located in the east south-central region of the United States.
Keira Christina Knightley (born 26 March 1985) is an English actress. She has worked in the British and American film industries, and has starred in Broadway and West End theatre productions.
Kenya (; locally [ˈkɛɲa] (listen)), officially the Republic of Kenya (Swahili: Jamhuri ya Kenya), is a country in Africa with its capital and largest city in Nairobi.
Keynesian economics ( KAYN-zee-ən; sometimes called Keynesianism) are the various macroeconomic theories about how in the short run – and especially during recessions – economic output is strongly influenced by aggregate demand (total demand in the economy).