EP, or Ep may refer to:
The Episcopal Church (TEC) is the United States-based member church of the worldwide Anglican Communion.
Epistemology (; from Greek ἐπιστήμη, epistēmē, meaning 'knowledge', and λόγος, logos, meaning 'logical discourse') is the branch of philosophy concerned with the theory of knowledge.
Epilepsy is a group of neurological disorders characterized by epileptic seizures. Epileptic seizures are episodes that can vary from brief and nearly undetectable to long periods of vigorous shaking.
The Epic of Gilgamesh is an epic poem from ancient Mesopotamia that is often regarded as the earliest surviving great work of literature.
Epigenetics are stable heritable traits (or "phenotypes") that cannot be explained by changes in DNA sequence.
Epidemiology is the study and analysis of the patterns, causes, and effects of health and disease conditions in defined populations.
Epinephrine, also known as adrenalin or adrenaline, is a hormone, neurotransmitter, and medication. Epinephrine is normally produced by both the adrenal glands and certain neurons.
Ephedrine is a medication and stimulant. It is often used to prevent low blood pressure during spinal anesthesia.
The Epstein–Barr virus (EBV), also called human herpesvirus 4 (HHV-4), is one of eight known human herpesvirus types in the herpes family, and is one of the most common viruses in humans.