Metropolitan Police said that Corde, from Grove Park, Camberwell, had not been seen since around 1am. He is described as a black boy with a small build, about 4'6" tall.
It is believed that Corde is wearing a dark blue hoodie with 'GAP' in yellow letters and Nike trainers.
He is thought to have wandered off from his address.
Police said that officers and his family "are increasingly concerned for his welfare".
Grove Park sits between Peckham Rye and Denmark Hill Overground stations in south London.
It sits between Walworth to the north, and Dulwich to the south.
Anyone with any information should call police immediately on 101 quoting 972/22DEC.