Continental Europe or mainland Europe is the contiguous mainland of Europe, excluding its surrounding islands. It can also be referred to ambiguously as the European continent, – which can conversely mean the whole of Europe – and, by some, simply as the Continent. When Eurasia is regarded as a single continent, Europe is treated both as a continent and subcontinent.

The continental territory of the historical Carolingian Empire was one of the many old cultural concepts used for mainland Europe. This was consciously invoked in the 1950s as one of the basis for the prospective European integration (see also multi-speed Europe)

The most common definition of mainland Europe excludes these continental islands: the Greek islands, Cyprus, Malta, Sicily, Sardinia, Corsica, the Balearic Islands, Great Britain and Ireland and surrounding islands, Novaya Zemlya and the Nordic archipelago, as well as nearby oceanic islands, including the Canary Islands, Madeira, the Azores, Iceland, the Faroe Islands, and Svalbard.

The Scandinavian Peninsula is sometimes also excluded even though it is a part of "mainland Europe", as the de facto connections to the rest of the continent were historically across the Baltic Sea or North Sea (rather than via the lengthy land route that involves travelling to the north of the peninsula where it meets Finland, and then south through northeast Europe).

Great Britain, off the western coast of the continental landmass, is the largest island of Europe by both area and population. It is geographically close, with the Strait of Dover being 21 miles (34 km) at its narrowest. In both Great Britain and Ireland (which together consisted of the states of the United Kingdom and the Republic of Ireland), the Continent is generally used to refer to the mainland of Europe. An amusing British newspaper headline supposedly once read, "Fog in Channel; Continent Cut Off". It has also been claimed that this was a regular weather forecast in Britain in the 1930s. In addition, the sole word Europe itself is also regularly used to mean anywhere on continental Europe.

Derivatively, the adjective continental refers to the social practices or fashion of continental Europe, or at least specific parts of it. Examples include breakfast, topless sunbathing and, historically, long-range driving (before Britain had motorways) often known as Grand Touring.^{[citation needed]} Remaining differences as seen in electrical plugs, the use of left-hand traffic, and for the United Kingdom, the continued use of certain imperial units alongside the metric units (which have long since displaced customary units in continental Europe) have reinforced the idea.

In 1994, Britain became physically connected to continental Europe for the first time (since becoming an island 8000 years ago) through the opening of the undersea Channel Tunnel. The tunnel accommodates passenger traffic between the island and northern France while maintaining border controls on each side.

The Scandinavian Peninsula is attached to continental Europe, however the land route runs along the 66th parallel north, in the north of the peninsula. The de facto connections to the rest of the continent were historically across the Baltic Sea or North Sea, thus making Scandinavia functionally an "island" and is why the region is often excluded from continental Europe, including by the European Union which make a distinction between Scandinavia and Mainland Europe. In traditional Germanic studies, continental refers to the European continent excluding the Scandinavian Peninsula (as well as Britain, Ireland, and Iceland). In Denmark (not on the peninsula), Jutland is referred to as the national mainland and thereby a part of continental Europe.