Southern Europe is the part of Europe generally associated with the Mediterranean region and the southern European peninsulas and islands. Commonly included countries are Portugal, Spain, Andorra, Italy, Malta, Greece, Cyprus, Albania, Bosnia and Herzegovina, Croatia, Montenegro, Serbia, Slovenia and North Macedonia, although definitions differ and some classifications place parts of the Balkans in Southeastern Europe rather than Southern Europe. Southern Europe is therefore not a single political or administrative region. It is a geographical concept influenced by latitude, climate, physical geography, historical connections and cultural traditions. The Mediterranean Sea is central to the region's geography, although Southern Europe also includes Atlantic facing areas such as Portugal and western Spain.
Southern Europe's physical geography includes the Iberian, Italian and Balkan peninsulas, numerous Mediterranean islands and major mountain systems such as the Alps, Apennines, Pyrenees, Dinaric Alps and Balkan Mountains. The region contains extensive coastlines, fertile plains, plateaus and mountainous terrain. Mediterranean climate is widespread, characterised generally by hot, relatively dry summers and milder, wetter winters, although local conditions vary substantially. Other climates occur in mountainous and northern areas. The physical environment has influenced agriculture, settlement, transport and tourism for thousands of years. Coastal plains and river valleys support dense settlement, while mountainous interiors are often more sparsely populated.
Southern Europe has been central to European and Mediterranean history. Ancient Greek civilisation developed major political, philosophical, artistic and scientific traditions, while Rome created an extensive empire whose institutions, language and infrastructure profoundly influenced Europe and the Mediterranean. Later Byzantine, Islamic, Catholic, Orthodox and Ottoman histories shaped different parts of the region. The Renaissance developed particularly strongly in Italian city states, producing major developments in art, architecture, literature and scholarship. Maritime trade connected Southern Europe with North Africa, the Middle East and the wider Atlantic world. These historical interactions produced a region containing many overlapping cultural traditions rather than a single homogeneous identity.
Languages of Southern Europe include major Romance languages such as Spanish, Portuguese and Italian, as well as Greek, Albanian, South Slavic languages and numerous minority and regional languages. Religious history is diverse, with Roman Catholicism particularly important in much of western and central Southern Europe and Eastern Orthodoxy especially influential in Greece and parts of the Balkans. Islam has historical and contemporary significance in parts of the Balkans and other communities. Jewish communities have also played important historical roles. Modern Southern European societies vary in levels of religious practice, secularisation, migration and cultural identity, so geographical location should not be equated with a single religion or culture.
Southern European economies contain manufacturing, services, agriculture, tourism, shipping, finance and technology. Italy has major manufacturing and industrial districts, while Spain and Portugal have substantial tourism, services, agriculture and renewable energy sectors. Greece has important tourism, shipping and services industries. Croatia, Montenegro and other Adriatic countries have substantial tourism economies. The Mediterranean climate supports production of olives, grapes, citrus fruits and other crops, while fisheries and maritime industries remain important. Economic conditions vary considerably between countries and between prosperous metropolitan regions and less developed rural or peripheral areas.
Tourism is particularly significant in many parts of Southern Europe because of climate, beaches, cultural heritage, historical cities, cuisine and landscapes. Cities such as Rome, Barcelona, Madrid, Athens, Lisbon, Venice, Florence and Dubrovnik attract large numbers of international visitors. Tourism can create employment, foreign exchange earnings and infrastructure investment but can also generate seasonal employment, housing pressure, congestion, water demand and environmental stress. Coastal areas may experience substantial seasonal population increases that are not reflected in resident population statistics. This distinction demonstrates why population distribution and density can vary according to the time of year and the type of population being measured.
Southern Europe is exposed to several environmental hazards. Mediterranean ecosystems are vulnerable to drought, heatwaves and wildfires, while mountainous areas can experience landslides, avalanches and earthquakes. Italy and Greece are located in tectonically active zones, and volcanic systems such as Mount Etna and Vesuvius have significant geological importance. Water scarcity can become severe during hot, dry summers, particularly where tourism and agriculture create high seasonal demand. Climate change can intensify heat extremes, drought risk and wildfire conditions. Coastal areas also face sea level rise and erosion. Environmental management is therefore increasingly important to agriculture, urban planning and tourism.
Southern Europe is significant because it forms a bridge between Europe, North Africa and the eastern Mediterranean and contains major historical, economic and cultural centres. Its seas and straits have connected different civilisations for millennia, while contemporary transport, trade and tourism maintain those connections. The region's geographical identity overlaps with terms such as Mediterranean Europe, the Balkans and Southwestern Europe, but those categories are not identical. A precise answer should therefore specify the countries or subregions intended. Southern Europe is best understood as a broad geographical region with shared Mediterranean connections and substantial internal differences in landscape, history, language, economy and political development.