The District of Belconnen (/ˈbɛlkɒnɪn/) is one of the original eighteen districts of the Australian Capital Territory (ACT), used in land administration. The district is subdivided into 27 divisions (suburbs), sections and blocks. The district of Belconnen is largely composed of Canberra suburbs. As at the 2021 census, the district had a population of 106,061 people; and was the most populous district within the Australian Capital Territory (ACT). Belconnen is situated approximately 7 kilometres (4.3 mi) to the north-west of the central business district of Canberra, and surrounds an artificially created, ornamental lake, Lake Ginninderra. Lake Ginninderra was made possible by building a dam at an elbow of Ginninderra Creek. Exiting the lake, via a simple overflow, Ginninderra Creek continues, and runs north-west to its confluence with the Murrumbidgee River just beyond the north-western ACT border.