As the patron of Delphi ( Pythian Apollo ), Apollo was an oracular god — the prophetic deity of the Delphic Oracle.

Medicine and healing are associated with Apollo, whether through the god himself or mediated through his son Asclepius, yet Apollo was also seen as a god who could bring ill-health and deadly plague.

However, while Apollo has a great number of appellations in Greek myth, only a few occur in Latin literature, chief among them Phoebus ( ; Φοίβος, Phoibos, literally " radiant "), which was very commonly used by both the Greeks and Romans in Apollo's role as the god of light.

As sun-god and god of light, Apollo was also known by the epithets Aegletes ( ; Αἰγλήτης, Aiglētēs, from αἴγλη, " light of the sun "), Helius ( ; Ἥλιος, Helios, literally " sun "), Phanaeus ( ; Φαναῖος, Phanaios, literally " giving or bringing light "), and Lyceus ( ; Λύκειος, Lukeios, from Proto-Greek * λύκη, " light ").

In association with his birthplace, Mount Cynthus on the island of Delos, Apollo was called Cynthius ( ; Κύνθιος, Kunthios, literally " Cynthian "), Cynthogenes ( ; Κύνθογενης, Kunthogenēs, literally " born of Cynthus "), and Delius ( ; Δήλιος, Delios, literally " Delian ").

Acesius was the epithet of Apollo worshipped in Elis, where he had a temple in the agora.

A temple was dedicated to Apollo Medicus at Rome, probably next to the temple of Bellona.

As a god of archery, Apollo was known as Aphetor ( ; Ἀφήτωρ, Aphētōr, from ὰφίημι, " to let loose ") or Aphetorus ( ; Ἀφητόρος, Aphētoros, of the same origin ), Argyrotoxus ( ; Ἀργυρότοξος, Argurotoxos, literally " with silver bow "), Hecaërgus ( ; Ἑκάεργος, Hekaergos, literally " far-shooting "), and Hecebolus ( ; Ἑκηβόλος, Hekēbolos, literally " far-shooting ").

Apollo was called Ismenius ( ; Ἰσμηνιός, Ismēnios, literally " of Ismenus ") after Ismenus, the son of Amphion and Niobe, whom he struck with an arrow.

Apollo was worshipped throughout the Roman Empire.

Apollo was worshipped at Mauvières ( Indre ).

This epithet was given to Apollo in parts of Gaul, Northern Italy and Noricum ( part of modern Austria ).

Apollo Belenus was a healing and sun god.

Grannus was a healing spring god, later equated with Apollo.

An epithet for Apollo at Alesia, where he was worshipped as god of healing and, possibly, of physicians.

Apollo Virotutis was worshipped, among other places, at Fins d ' Annecy ( Haute-Savoie ) and at Jublains ( Maine-et-Loire ).

At Delphi, Apollo was venerated as the slayer of Pytho.

For the Greeks, Apollo was all the Gods in one and through the centuries he acquired different functions which could originate from different gods.

The magicians were also called " seer-doctors " ( ιατρομάντεις ), and they used an ecstatic prophetic art which was used exactly by the god Apollo at the oracles.

It was in this way that Apollo had become recognised as the god of music.

Apollo Delphinios was a sea-god especially worshiped in Crete and in the islands, and his name indicates his connection with Delphi and the holy serpent Delphyne ( womb ).

We don't know his original name, but it seems that he was absorbed by the more powerful Apollo, who stood by the " Mistress of the animals ", becoming her brother.

In ancient Cretan history Leto was worshipped at Phaistos and in Cretan mythology Leto gave birth to Apollo and Artemis at the islands known today as the Paximadia.

Artemis may have been represented as a supporter of Troy because her brother Apollo was the patron god of the city and she herself was widely worshipped in western Anatolia in historical times.

The Etruscans coming from northern Anatolia also worshipped Apollo, and it may be that he was originally identical with Mesopotamian Aplu, an Akkadian title meaning " son ", originally given to the plague God Nergal, son of Enlil.

' Whereas Christians ( who have learned that their eternal life consists in knowing the only true God, who is over all, and Jesus Christ, whom He has sent ; and who have learned also that all the gods of the heathen are greedy demons, which flit around sacrifices and blood, and other sacrificial accompaniments, in order to deceive those who have not taken refuge with the God who is over all, but that the divine and holy angels of God are of a different nature and will from all the demons on earth, and that they are known to those exceedingly few persons who have carefully and intelligently investigated these matters ) will not endure a comparison to be made between them and Apollo or Zeus, or any being worshipped with odour and blood and sacrifices ; some of them, so acting from their extreme simplicity, not being able to give a reason for their conduct, but sincerely observing the precepts which they have received ; others, again, for reasons not to be lightly regarded, nay, even of a profound description, and ( as a Greek would say ) drawn from the inner nature of things ; and amongst the latter of these God is a frequent subject of conversation, and those who are honoured by God, through His only-begotten Word, with participation in His divinity, and therefore also in His name.

Would that I were as sure of being immortal and never growing old, and of being worshipped like Minerva and Apollo, as I am that this day will bring evil to the Argives.

In Gallo-Roman religion, Damona was a goddess worshipped in Gaul as the consort of Apollo Borvo and of Apollo Moritasgus.

According to Macrobius citing Nigidius Figulus and Cicero, Janus and Jana ( Diana ) are a pair of divinities, worshipped as Apollo or the sun and moon, whence Janus received sacrifices before all the others, because through him is apparent the way of access to the desired deity.

Iphigeneia and Artemis were worshipped in Brauron, Artemis in Rafina, Athena on Sounion, Aphrodite on Iera Odos, and Apollo in Daphne.

Examples of gods and goddesses worshipped include Lugh, Cernunnous, the Morrigan, Thor, Freya, Apollo, Athena, Vesta, Ceres, and many other ancient, pre-Christian, Indo-European deities.

Helios was especially worshipped in Rhodes, but by the 5th Century BC the Greeks had primarily replaced him with Apollo Phoebus.

Among the most important gods worshipped in Treveran territory were Mercury and Rosmerta, Lenus Mars and Ancamna, Jupiter Optimus Maximus, Apollo, Intarabus, and Minerva.

Hylates was a god worshipped on the island of Cyprus who was later likened to the Greek God Apollo.

It was one of the main religious centres of ancient Cyprus, where Apollo was worshipped as god of the woodlands.

He declared that the most widely venerated god in Gaul was Mercury, the Roman god of trade, but that they also worshipped Apollo, Minerva, Mars and Jupiter.

Beside the cult of Apollo, the people of Amyklai also worshipped Dionysus, as Dionysos Psilax.

Apollo ( Attic, Ionic, and Homeric Greek:, Apollōn ( gen .: ); Doric:, Apellōn ; Arcadocypriot:, Apeilōn ; Aeolic:, Aploun ; ) is one of the most important and complex of the Olympian deities in ancient Greek and Roman religion, Greek and Roman mythology, and Greco – Roman Neopaganism.

As god of the sun, the Romans referred to Apollo as Sol ( ; literally " sun " in Latin ).

As Artemis's twin, Apollo had the epithet Didymaeus ( ; Διδυμαιος, Didumaios, from δίδυμος, " twin ").

The Romans referred to Apollo as Medicus ( ; literally " physician " in Latin ) in this respect.

As a protector and founder, Apollo had the epithets Alexicacus ( ; Ἀλεξίκακος, Alexikakos, literally " warding off evil "), Apotropaeus ( ; Ἀποτρόπαιος, Apotropaios, from ἀποτρέπειν, " to avert "), and Epicurius ( ; Ἐπικούριος, Epikourios, from ἐπικουρέειν, " to aid "), and Archegetes ( ; Ἀρχηγέτης, Arkhēgetēs, literally " founder "), Clarius ( ; Κλάριος, Klārios, from Doric κλάρος, " allotted lot "), and Genetor ( ; Γενέτωρ, Genetōr, literally " ancestor ").

In his role as god of prophecy and truth, Apollo had the epithets Manticus ( ; Μαντικός, Mantikos, literally " prophetic "), Leschenorius ( ; Λεσχηνόριος, Leskhēnorios, from λεσχήνωρ, " converser "), and Loxias ( ; Λοξίας, Loxias, from λέγειν, " to say ").