Karachi (Urdu: کراچ) is the largest city in Pakistan and the capital of the province of Sindh. Until 1958 it was also the capital of Pakistan. It is also one of the world's megacities.  The capital was then moved to Islamabad. In 2017 about 17.63 million people lived in Karachi. It is the largest city in the Muslim world.
Old names for the city include "Mai Kolachi Jo Goth" and "Karatishi". A native of Karachi is called a Karachiite. Quaid-e-Azam (Muhammad Ali Jinnah) father of the nation was born and buried in Karachi. It has two important regional seaports. Karachi makes the largest share of Pakistan's GDP and national revenue.
Karachi has five districts: District South, District East, District West, District Central, and District Malir. The city is the financial and commercial center of Pakistan.
Karachi has 26 universities including the University of Karachi. It is home to the National Stadium, which hosts many cricket games, and several other sports complexes. The city has several long sandy beaches including Clifton/Kemari beach and Sandspit beach. Clifton beach suffered from an oil spillage but the beach was cleaned. Karachi has Pakistan's first nuclear site KANUP in 1952 from Canada. Karachi hosted the first ever night hockey match between India and Pakistan in 1986 at Hockey Club of Pakistan Stadium.
Karachi has many large and small shopping areas including the Saddar area in downtown Karachi. Karachi also has a number of large modern shopping malls. The city has a modern international airport called the Jinnah International Airport and two large shipping ports at Port of Karachi and Port Qasim. Karachi is linked by railway to the rest of Pakistan.
- Barbara A. Weightman (15 June 2011), Dragons and Tigers: A Geography of South, East, and Southeast Asia, John Wiley & Sons, ISBN 978-11-1813-998-1
- "Karachi Population 2017". World Population Review. Retrieved 13 June 2017.