The Mayor of Southwark and representatives of local organisations laid wreaths at the Borough War Memorial in Borough High Street on Sunday morning.
For many years the former town hall in Walworth Road was the focus of the borough's Remembrance Sunday observances but the fire at that building in 2013 means that Borough High Street now hosts the main civic gathering.
The St Saviour's war memorial was rededicated earlier this year after restoration work.
Pandit Sunil Pathak, spiritual advisor to Mayor of Southwark Sunil Chopra, read from the Old Testament.
Wreaths were laid by the Mayor, deputy lieutenant Jenny Bianco, representatives of the emergency services and Southwark coroner Dr Andrew Harris.
MPs Simon Hughes, Harriet Harman and Dame Tessa Jowell took part in the ceremony, along with leaders of the the three party groups on the council.
Council staff were represented by Duncan Whitfield, strategic director of finance and corporate services.
Wreaths were laid by Southwark civic representatives and diplomats from the former Soviet republics.
Manuel Allamellou, deputy mayor of Clichy-la-Garenne, represented Southwark's French twin town at Sunday's ceremonies.
In the Anglican Southwark Cathedral, members of the Volunteer Police Cadets took part in the Remembrance Sunday Choral Eucharist.