An example of their, probably accidental, presence, is the tumulus dated 8th-7th c. The region around Odessos was densely populated with Thracians long before the coming of the Greeks on the west seashore of the Black Sea. Around the city [Odessos] lives the Thracian tribe named Crobises.” This is also evidenced by various ceramic pottery, made by hand or by a Potter's wheel, bronze ornaments for horse-fittings and iron weapons, all found in Thracian necropolises dated 6th-4th c.BC near the villages of Dobrina, Kipra, Brestak and other, all in Varna Province.Many bronze artefacts give testimony for such process, for example, applications and front plates for horse heads, as well as moulds for such products in nearby and more distanced settlements. BC the region had been populated by more Getae, which is a Thracian tribe populating both shores around the Danube Delta.Celts started populating the region after their invasion of the Balkan peninsula in 280 BC.In the wider region of the Varna lakes (before the 1900s, freshwater) and the adjacent karst springs and caves, over 30 prehistoric settlements have been unearthed with the earliest artefacts dating back to the Middle Paleolithic or 100,000 years ago. BC) the area around Odessos had been populated with Thracians. BC local Thracians had active commercial and cultural contacts with people from Anatolia, Thessaly, Caucasus and the Mediterranean Sea.These links were reflected in some local productions, for example, forms of bronze fibula of the age, either imported or locally made.The Thracians in the region were ruled by kings, who entered into unions with the Odrysian kingdom, Getae or Sapaeans - large Thracian states existing between 5th-1st c. Between 336-280 BC these Thracian states along with Odessos were conquered by Alexander the Great.
Varna Peninsula on Livingston Island in the South Shetland Islands, Antarctica is named after Varna.
Conservatism is easily noticed in ceramic items and in religion.
The highest deity of all was the Thracian horseman, who had different names and functions in different places.
In Swedish, the meaning of värn is "shield, defense" – hence Varna could mean "defended, fortified place". Varuna), or from Proto-Slavic root varn "black", or from Iranian bar or var "camp, fortress" (see also Etymological list of provinces of Bulgaria).
According to Theophanes, in 680 Asparukh, the founder of the First Bulgarian Empire, routed an army of Constantine IV near the Danube delta and, pursuing it, reached the so-called Varna near Odyssos [sic] and the midlands thereof (τὴν λεγομένην Βάρναν, πλησίον Ὀδυσσοῦ).