Greek may refer to:
Anything of, from, or related to Greece, a country in Southern Europe:
Greeks, an ethnic group
Greek language, a branch of the Indo-European language family
Proto-Greek language, the assumed last common ancestor of all known varieties of Greek
Mycenaean Greek, most ancient attested form of the language (16th to 11th centuries BC)
Ancient Greek, forms of the language used c. 1000–330 BC
Koine Greek, common form of Greek spoken and written during Classical antiquity
Medieval Greek or Byzantine Language, language used between the Middle Ages and the Ottoman conquest of Constantinople
Modern Greek, varieties spoken in the modern era (from 1453 AD)
Greek alphabet, script used to write the Greek language
Greek Orthodox Church, several Churches of the Eastern Orthodox Church
Ancient Greece, the ancient civilization before the end of Antiquity
Old Greek, the language as spoken from Late Antiquity to around 1500 AD
Greek mythology, a body of myths originally told by the Ancient Greeks
