Old Europe is a term coined by the Lithuanian-American archaeologist Marija Gimbutas to describe what she perceived as a relatively homogeneous pre-Indo-European Neolithic and Copper Age culture or civilisation in Southeast Europe, centred in the Lower Danube Valley. Old Europe is also referred to in some literature as the Danube civilisation.

The term Danubian culture was earlier coined by the archaeologist Vere Gordon Childe to describe early farming cultures (e.g. the Linear Pottery culture) which spread westwards and northwards from the Danube Valley into Central and Eastern Europe.

In 4500 bc, before the first cities were built in Mesopotamia and Egypt, Old Europe was among the most sophisticated and technologically advanced places in the world ... At its peak, about 5000–3500 bc, Old Europe was developing many of the political, technological, and ideological signs of "civilization". Some Old European villages grew to citylike sizes, larger than the earliest cities of Mesopotamia ... Old European metalsmiths were, in their day, among the most advanced metal artisans in the world, and certainly the most active. The metal artifacts recovered by archaeologists from Old Europe total about 4,700 kilograms (more than five tons) of copper, and over 6 kilograms (13.2 pounds) of gold, more metal by far than has been found in any other part of the ancient world dated before 3500 bc. The demand for copper, gold, Aegean shells, and other valuables created networks of negotiation that reached hundreds of kilometers. Pottery, figurines, and even houses were decorated with striking designs. Female "goddess" figurines, found in almost every settlement, have triggered intense debates about the ritual and political power of women. Signs inscribed on clay suggest a system of primitive notation, if not writing.

— Anthony (2010)

Neolithic Europe refers to the time between the Mesolithic and Bronze Age periods in Europe, roughly from 7000 BC (the approximate time of the first metal processing societies in Bosnia and Serbia, and first farming societies in Greece), to c. 2000 BC (the beginning of the Bronze Age in Scandinavia). Its peak period is estimated as 5000–3500 BC, during which its population centers exceeded the first Mesopotamian cities. A high level of craft skill and trade is evident from tons of recovered copper artifacts and a small amount of gold, as well as pottery and carved items. These include the period's signature female figurines which have raised interest in the role of the society's women, as well as suspected proto-writing.

Regardless of specific chronology, many European Neolithic groups share basic characteristics, such as living in small-scale communities, being more egalitarian^{[disputed – discuss]} than the city-states and chiefdoms of the Bronze Age, subsisting on domestic plants and animals supplemented with the collection of wild plant foods and hunting, and producing hand-made pottery, without the aid of the potter's wheel. There are also many differences, with some Neolithic communities in southeastern Europe living in heavily fortified settlements of 3,000–4,000 people (e.g., Sesklo in Greece) whereas Neolithic groups in Britain were usually small (possibly 50–100 people).

Marija Gimbutas studied the Neolithic period in order to understand cultural developments in settled village culture in the southern Balkans, which she characterized as peaceful, matristic, and possessing a goddess-centered religion. In contrast, she characterizes the later Indo-European influences as warlike, nomadic, and patrilineal. Using evidence from pottery and sculpture, and combining the tools of archaeology, comparative mythology, linguistics, and, most controversially, folkloristics, Gimbutas invented a new interdisciplinary field, archaeomythology.

In historical times, some ethnonyms are believed to correspond to Pre-Indo-European peoples, assumed to be the descendants of the earlier Old European cultures: the Pelasgians, Minoans, Leleges, Iberians, Nuragic people, Etruscans, Rhaetians, Camunni and Basques. Two of the three pre-Greek peoples of Sicily, the Sicans and the Elymians, may also have been pre-Indo-European.