The Russian capital Moscow, with over 17 million inhabitants in its urban area (and just under 12 and a half in the city limits), is the largest European city.
In second place we have Istanbul, whose eastern part is however located in Asia, with about 35% of the inhabitants living on this continent; it has quite rapid growth rates, in fact in 2000 it counted 8 million people.
Paris and London are the other two European cities to overcome the barrier of ten million inhabitants and together with Bangkok the most visited in the world.
With 12 and 7 cities in this ranking, Russia and Germany are respectively the most represented countries, on the other hand they are also those with the most inhabitants (even considering only the European part of Russia).
* data on urban agglomerations updated to 2023 (estimates), those on population according to official data or more recent estimates of the national statistical services, when different from urban agglomerations.
In second place we have Istanbul, whose eastern part is however located in Asia, with about 35% of the inhabitants living on this continent; it has quite rapid growth rates, in fact in 2000 it counted 8 million people.
Paris and London are the other two European cities to overcome the barrier of ten million inhabitants and together with Bangkok the most visited in the world.
With 12 and 7 cities in this ranking, Russia and Germany are respectively the most represented countries, on the other hand they are also those with the most inhabitants (even considering only the European part of Russia).
| City | Urban aggl. | Population | Urban area | Country | Other cities in urban area |
| Moscow | 17,878,000 | 13,010,000 | 6,643 Kmē | Russia | Balashikha, Podolsk, Khimki |
| Istanbul | 15,306,000 | 15,306,000 | 1,471 Kmē | Turkey | |
| Paris | 11,108,000 | 2,088,000 | 2,854 Kmē | France | Boulogne-Billancourt, Saint-Denis |
| London | 10,803,000 | 8,777,000 | 1,738 Kmē | United Kingdom | Watford, Woking |
| Madrid | 6,798,000 | 3,340,000 | 1,365 Kmē | Spain | Móstoles, Alcalá de Henares, Fuenlabrada |
| Düsseldorf | 6,769,000 | 611,000 | 2,683 Kmē | Germany | Dortmund, Essen, Duisburg |
| Saint Petersburg | 5,750,000 | 5,602,000 | 1,510 Kmē | Russia | |
| Milan | 5,471,000 | 1,372,000 | 2,225 Kmē | Italy | Monza |
| Barcelona | 5,317,000 | 1,656,000 | 1,072 Kmē | Spain | L'Hospitalet de Llobregat, Badalona, Terrassa, Sabadell |
| Berlin | 4,286,000 | 3,597,000 | 1,368 Kmē | Germany | |
| Naples | 3,653,000 | 912,000 | 1,031 Kmē | Italy | Giugliano in Campania |
| Athens | 3,309,000 | 643,000 | 583 Kmē | Greece | Piraeus, Peristeri |
| Rome | 3,239,000 | 2,755,000 | 1,145 Kmē | Italy | |
| Rotterdam | 3,027,000 | 671,000 | 1,015 Kmē | Netherlands | The Hague |
| Kiev | 3,001,000 | 3,001,000 | 761 Kmē | Ukraine | |
| Lisbon | 2,832,000 | 567,000 | 951 Kmē | Portugal | Amadora |
| Birmingham | 2,517,000 | 1,121,000 | 598 Kmē | United Kingdom | Wolverhampton, Solihull |
| Manchester | 2,449,000 | 470,000 | 632 Kmē | United Kingdom | Bolton, Sale |
| Budapest | 2,407,000 | 1,686,000 | 997 Kmē | Hungary | Erd |
| Brussels | 2,238,000 | 197,000 | 870 Kmē | Belgium | Schaerbeek, Anderlecht |
| Cologne | 2,218,000 | 1,017,000 | 780 Kmē | Germany | Bonn, Leverkusen |
| Stockholm | 2,200,000 | 989,000 | 847 Kmē | Sweden | |
| Hamburg | 2,189,000 | 1,809,000 | 795 Kmē | Germany | |
| Minsk | 2,126,000 | 1,993,000 | 433 Kmē | Belarus | |
| Munich | 2,112,000 | 1,479,000 | 482 Kmē | Germany | |
| Bucharest | 2,097,000 | 1,725,000 | 412 Kmē | Romania | |
| Frankfurt | 2,055,000 | 743,000 | 660 Kmē | Germany | Offenbach |
| Warsaw | 2,028,000 | 1,862,000 | 546 Kmē | Poland | Pruszków |
| Vienna | 2,015,000 | 2,015,000 | 337 Kmē | Austria | |
| Katowice | 1,903,000 | 279,000 | 728 Kmē | Poland | Sosnowiec, Gliwice, Zabrze, Bytom |
| Amsterdam | 1,736,000 | 931,000 | 487 Kmē | Netherlands | Zaanstad |
| Leeds | 1,659,000 | 536,000 | 487 Kmē | United Kingdom | Bradford, Huddersfield |
| Copenhagen | 1,650,000 | 662,000 | 565 Kmē | Denmark | |
| Nizhniy Novgorod | 1,635,000 | 1,226,000 | 857 Kmē | Russia | |
| Valencia | 1,547,000 | 804,000 | 394 Kmē | Spain | Torrent |
| Turin | 1,492,000 | 847,000 | 381 Kmē | Italy | |
| Kharkiv | 1,484,000 | 1,434,000 | 394 Kmē | Ukraine | |
| Lyon | 1,424,000 | 522,000 | 461 Kmē | France | Villeurbanne |
| Marseille | 1,406,000 | 873,000 | 689 Kmē | France | Aix-en-Provence |
| Stuttgart | 1,397,000 | 610,000 | 477 Kmē | Germany | |
| Dublin | 1,386,000 | 593,000 | 461 Kmē | Ireland | |
| Prague | 1,385,000 | 1,385,000 | 308 Kmē | Czech Republic | |
| Donetsk | 1,378,000 | 905,000 | 684 Kmē | Ukraine | |
| Porto | 1,364,000 | 249,000 | 795 Kmē | Portugal | Vila Nova de Gaia |
| Belgrade | 1,355,000 | 1,197,000 | 254 Kmē | Serbia | |
| Volgograd | 1,324,000 | 1,028,000 | 702 Kmē | Russia | |
| Lille | 1,315,000 | 237,000 | 528 Kmē | France | Roubaix, Tourcoing |
| Kazan | 1,309,000 | 1,309,000 | 448 Kmē | Russia | |
| Rostov-on-Don | 1,264,000 | 1,142,000 | 381 Kmē | Russia | |
| Dnipro | 1,220,000 | 981,000 | 803 Kmē | Ukraine | |
| Sofia | 1,197,000 | 1,197,000 | 207 Kmē | Bulgaria | |
| Samara | 1,173,000 | 1,173,000 | 246 Kmē | Russia | |
| Helsinki | 1,146,000 | 678,000 | 515 Kmē | Finland | Espoo, Vantaa |
| Ufa | 1,145,000 | 1,145,000 | 347 Kmē | Russia | |
| Odessa | 1,142,000 | 1,016,000 | 370 Kmē | Ukraine | |
| Seville | 1,138,000 | 684,000 | 272 Kmē | Spain | Dos Hermanas |
| Glasgow | 1,100,000 | 632,000 | 357 Kmē | United Kingdom | Paisley |
| Krasnodar | 1,099,000 | 1,099,000 | 337 Kmē | Russia | |
| Saratov | 1,083,000 | 901,000 | 546 Kmē | Russia | |
| Antwerp | 1,070,000 | 545,000 | 666 Kmē | Belgium | |
| Voronezh | 1,069,000 | 1,069,000 | 603 Kmē | Russia | |
| Perm | 1,034,000 | 1,034,000 | 319 Kmē | Russia | |
| Oslo | 1,007,000 | 720,000 | 324 Kmē | Norway | Bærum |
* data on urban agglomerations updated to 2023 (estimates), those on population according to official data or more recent estimates of the national statistical services, when different from urban agglomerations.