Map - Batam (Kota Batam)

Batam is the largest city in the province of Riau Islands, Indonesia. The city administrative area covers three main islands of Batam, Rempang, and Galang (collectively called Barelang), as well as several small islands. Batam Island is the core urban and industrial zone, while both Rempang Island and Galang Island maintain their rural character and are connected to Batam Island by short bridges. Batam is an industrial boomtown, an emerging transport hub, and part of a free trade zone in the Indonesia–Malaysia–Singapore Growth Triangle, located 20 km off Singapore's south coast and also part of the Indonesia–Malaysia–Thailand Growth Triangle.

According to Statistics Indonesia's 2020 census, Batam had a population of 1,196,396, making it the third largest city in the region of Sumatra, after Medan and Palembang. It is the closest part of Indonesia to Singapore, at a minimum land distance of 5.8 km. During the 2010 national census, Batam was the fastest-growing municipality in Indonesia the decade prior, with a population growth rate of 11% per year. In 2017, the island suffered severe job losses; some 300,000 workers were laid off.

The first recorded inhabitants at Batam Island are Malays known as Orang Laut, from the year 231 AD. The island that once served as the field of struggle of Admiral Hang Nadim against the invaders was used by the government in the 1960s as a petroleum logistics base on Sambu Island.

In the 1970s, according to Presidential Decree number 41 year 1973, Batam Island was designated as a working environment of an industrial area supported by Batam Island Industrial Development Authority or better known as Batam Authority Board (BOB, now Batam Development Board (Badan Pengusahan Batam or BP Batam) as the driving force for the development of Batam, with the initial aim of making Batam the "Indonesian version of Singapore". With the rapid development of the island, based on Government Regulation No. 34 of 1983, the Batam District (which is part of Riau Islands Regency) was upgraded to municipality status which has the duties in running government administration and society and support the development of BP Batam.

In the Reformation era in the late 1990s, with Act No. 53 of 1999, the Batam administrative municipality changed its status to an autonomous region, namely Batam City Government to carry out governmental and developmental functions by involving BP Batam.