Prague 1, formally the Prague 1 Municipal District (Městská část Praha 1), is a second-tier municipality in Prague. It is co-extensive with the national administrative district (správní obvod) of the same name.

Prague 1 includes most of the medieval heart of the city. All of Staré Město (the Old Town) and Josefov (the Jewish Quarter) are in the district, as are most of Malá Strana (the Little Quarter), Hradčany and Nové Město (the New Town). Tiny parts of Holešovice and Vinohrady round out the district. The district has remained intact since its creation in 1960.

Most of Prague 1 is a UNESCO World Heritage Site. Almost all of Prague's major tourist sites, including Prague Castle, Old Town Square, the Charles Bridge and the above-mentioned Jewish Quarter, are in the district. The Parliament of the Czech Republic and the offices of the government are in Malá Strana, while the main building of Charles University is in Staré Město.

As of the end of 2004, 32,552 people lived in 18,821 homes in the district. The district covers 5.53 km² (1,366 acres).

Prague ( /ˈprɑːɡ/; Czech: Praha pronounced [ˈpraɦa] ( listen)) is the capital and largest city of the Czech Republic and fourteenth largest city in European Union. Situated in the north-west of the country on the Vltava river, the city is home to about 1.3 million people, while its metropolitan area is estimated to have a population of nearly 2.0 million. The city has a temperate oceanic climate with warm summers and chilly winters.

Prague has been a political, cultural, and economic centre of central Europe with waxing and waning fortunes during its 1,100 year existence. Founded during the Romanesque and flourishing by the Gothic and Renaissance eras, Prague was the seat of two Holy Roman Emperors and thus then also the capital of the Holy Roman Empire. It was an important city to the Habsburg Monarchy and its Austro-Hungarian Empire and after World War I became the capital of Czechoslovakia. The city played major roles in the Protestant Reformation, the Thirty Years' War, and in modern history generally as the principal conurbation in Bohemia and Moravia whose second city is Brno.