The city will be the first local authority in Scotland to phase out the warning notices following the decision made by Aberdeen City Council's Communities, Housing and Infrastructure committee.
Signage was erected over a number of years on a piecemeal basis at the request of local residents. The aim was to deter what was regarded as anti-social behaviour, but it is understood that the signs have no legal status.
Aberdeen City Council Convener of Communities, Housing and Infrastructure, Councillor Neil Cooney, said: "This is a first for Scotland and it makes sense. The ban on ball games is unenforceable and the removal of these signs may help our kids become healthier by encouraging more outdoor play."
Minor savings to maintenance budgets are expected from the move, as there will be no ongoing replacement or maintenance costs of signs, no spraying around the signs and easier access for grass cutting, the council said.
The removal of the signage was supported by a number of organisations, including Aberdeen Greenspace, Aberdeen Play Forum, Aberlour Futures, Aberdeen Council of Volunteer Organisations, Creative STAR Learning Company, Mud Pies, Play Scotland and Early Years Scotland.
Removal of the signs is due to be completed by UK National Play Day on 3 August 2016.