Cappadocia (/kæpəˈdoʊʃəˌ -ˈdoʊkiə/; Turkish: Kapadokya, from Ancient Greek: Καππαδοκία) is a historical region in Central Anatolia region, Turkey. It is largely in the provinces of Nevşehir, Kayseri, Aksaray, Kırşehir, Sivas and Niğde. Today, the touristic Cappadocia Region is located in Nevşehir province.

According to Herodotus, in the time of the Ionian Revolt (499 BC), the Cappadocians were reported as occupying a region from the Taurus Mountains to the vicinity of the Euxine (Black Sea). Cappadocia, in this sense, was bounded in the south by the chain of mountains that separate it from Cilicia, to the east by the upper Euphrates, to the north by the Pontus, and to the west by Lycaonia and eastern Galatia.

The name, traditionally used in Christian sources throughout history, continues in use as an international tourism concept to define a region of exceptional natural wonders, in particular characterized by fairy chimneys, in addition to its religious heritage of being a centre of early Christian learning, evidenced by hundreds of churches and monasteries (such as those of Göreme and Ihlara), as well as underground cities that were dug to offer protection during periods of persecution.

The earliest record of the name of Cappadocia (/kæpəˈdoʊʃəˌ -ˈdoʊkiə/; Turkish: Kapadokya; Ancient Greek: Καππαδοκία, romanized: Kappadokía, Classical Syriac: ܩܦܘܕܩܝܐ, romanized: Kəp̄uḏoqyā, from Old Persian: 𐎣𐎫𐎱𐎬𐎢𐎣 Katpatuka; Hittite: 𒅗𒋫𒁉𒁕, romanized: Katapeda; Armenian: Կապադովկիա,, romanized: Kapadovkia) dates from the late sixth century BC, when it appears in the trilingual inscriptions of two early Achaemenid emperors, Darius the Great and Xerxes I, as one of the countries (Old Persian dahyu-). In these lists of countries, the Old Persian name is Katpatuka. It was proposed that Kat-patuka came from the Luwian language, meaning "Low Country".

Subsequent research suggests that the adverb katta meaning 'down, below' is exclusively Hittite, while its Luwian equivalent is zanta. Therefore, the recent modification of this proposal operates with the Hittite katta peda-, literally "place below" as a starting point for the development of the toponym Cappadocia.

The earlier derivation from Iranian Hu-apa-dahyu 'Land of good horses' can hardly be reconciled with the phonetic shape of Kat-patuka. Several other etymologies have also been offered in the past.

Herodotus wrote that the name of the Cappadocians was applied to them by the Persians, while they were termed by the Greeks "White Syrians" (Leucosyri), who were most probably descendants of the Hittites. One of the Cappadocian tribes he mentions is the Moschoi, associated by Flavius Josephus with the biblical figure Meshech, son of Japheth: "and the Mosocheni were founded by Mosoch; now they are Cappadocians". AotJ I:6.^{[citation needed]}

Cappadocia appears in the biblical account given in the book of Acts 2:9. The Cappadocians were named as one group (among "Parthians, Medes and Elamites; residents of Mesopotamia, Judea and Cappadocia, Pontus and Asia") hearing the Gospel account from Galileans in their own language on the day of Pentecost shortly after the resurrection of Jesus Christ. Acts 2:5 states "Now there were staying in Jerusalem God-fearing Jews from every nation under heaven," seeming to suggest that some of the Cappadocians were Jews, or part of the diaspora of Jews present in Jerusalem at the time.