The images relate to the looting and violent disorder in Lewisham, Wandsworth, Croydon, Haringey, Lambeth, Waltham Forest, Greenwich and Tower Hamlets on 6 and 8 August.
The photographs feature people who were in the area at the time of the disorder and who may be able to help police with their enquiries.
The release of images is part of Operation Withern which is investigating the riots.
Flickr is hosting the photos so that the public can help the Scotland Yard identify the people in the photos.
Operation Withern is also seeking information about the violence and disorder that has occurred and further images or footage.
Its 500 officers have already gathered 20,000 hours of CCTV footage and forensic officers have made some 300 submissions to labs from more than 1,100 crime scenes
Scotland Yard has now charged more than 1,000 suspects over the rioting and it is targeting 3,000 convictions.