Gerrard, who had overall responsibility for Leagas Delaney's Emirates and Goodyear Dunlop Tyres accounts, is to take up a similar role at Euro RSCG for Peugeot.
It is understood Gerrard will also work on a separate account at Euro RSCG, which has struck a rich vein of new-business success.
Earlier this week, the Havas-owned agency landed a place on the coveted Pernod Ricard advertising roster, to handle creative duties on Scottish whiskey brand Chivas Regal. Other wins include McDonald's, L'Oreal and Jaguar.
Euro RSCG confirmed the appointment. Leagas Delaney declined to comment.
This article was first published on brandrepublic.com