Aberdeen City Council (Scottish Gaelic: Comhairle Baile Obar Dheathain) is the local authority for Aberdeen City, one of the 32 council areas of Scotland. In its modern form it was created in 1996. Aberdeen was formerly governed by a corporation from when it was made a burgh in the twelfth century until 1975. Between 1975 and 1996 the city was governed by City of Aberdeen District Council, a lower-tier authority within the Grampian region.

The council has been under no overall control since 2002. Since 2022 it has been led by a Scottish National Party and Liberal Democrat coalition. It meets at Aberdeen Town House and has its main offices at the neighbouring Marischal College.

Aberdeen was made a royal burgh by David I (reigned 1124–1153). The burgh of Aberdeen was governed by a corporation, also known as the town council. Elections for the council were only introduced in 1833. Prior to that the council was not an elected body; when vacancies arose the existing council appointed successors. As Aberdeen grew, the council's powers were inadequate to cater for the needs of the growing urban area. A separate police commission was established in 1795 with powers to levy taxes and provide infrastructure ('police' in this context being its older meaning of civic government rather than law enforcement). The first police commission was short-lived, but it was resurrected in 1818 after the town council went bankrupt in 1817. From 1818 until 1871 there was a dual system of local government, with the town council and police commission having different roles in Aberdeen's administration. The police commission was eventually abolished in 1871 and its functions absorbed by the town council.

Aberdeen was historically part of Aberdeenshire, but the functions affecting the burgh which operated at county level were relatively few, largely being limited to judicial functions and lieutenancy. When elected county councils were created in 1890 under the Local Government (Scotland) Act 1889, Aberdeen Corporation was deemed capable of running county-level local government functions, and so the burgh was excluded from the area administered by Aberdeenshire County Council.

In 1891 Aberdeen's boundaries were significantly enlarged, absorbing the neighbouring burghs of Old Aberdeen and Woodside, plus the Torry area on the south bank of the River Dee. The act of parliament which expanded the burgh also confirmed that Aberdeen was entitled to be called a city; it had commonly been described as a city prior to that, but (like most Scottish cities) without official recognition.

The historic county boundary between Aberdeenshire and Kincardineshire in this area followed the River Dee. Following the absorption of Torry on the south bank of the river in 1891, the city straddled the two counties. Aberdeen was made a county of itself in 1899, removing the city from the two counties for lieutenancy and other purposes as well as local government functions. The city boundaries were subsequently enlarged several times, gaining further territory from both Aberdeenshire and Kincardineshire, notably in 1935, 1952 and 1970.

Local government across Scotland was reorganised in 1975 under the Local Government (Scotland) Act 1973, which replaced the counties, burghs and landward districts with a two-tier system of regions and districts. One of the districts was called 'City of Aberdeen', which formed part of Grampian Region. City of Aberdeen District Council was therefore a lower-tier district authority, with upper-tier regional functions being provided by Grampian Regional Council.

The City of Aberdeen district covered a larger area than the pre-1975 city, taking in the parishes of Dyce, Newhills, Old Machar, and Peterculter from Aberdeenshire and Nigg from Kincardineshire. All except Dyce had previously ceded territory to the city in pre-1975 boundary changes. The parish of Nigg added in 1975 just covered the residual rural parts of the old parish around Cove Bay; Nigg village itself had been absorbed into the city in 1935. The parish of Old Machar was named after St Machar's Cathedral in Old Aberdeen, which had been absorbed into the city in 1891; the parish of Old Machar that was absorbed in 1975 was just the residual part of the cathedral's old parish which lay north of the River Don, including Bridge of Don.