More than 90% of Londoners have called for action to tackle the environmental impact of throw-away plastic bags, according to a survey.
Londoners use at least 1.6bn bags each year
Almost 60% of those who took part in the London Councils consultation supported an outright ban.
Proposals to introduce a 10p charge on all bags, including plastic ones, were also popular among respondents.
The results will be discussed next week ahead of final submissions for the London Local Authorities Bill.
The survey, which ran for six weeks and involved more 2,000 people, was in response to proposals to introduce a London-wide ban, or levy, on throw-away shopping bags.
People were given seven options ranging from taking no action to an outright ban. Options also included a levy or ban on only plastic bags.
Of those questioned 58% called for a ban on disposable shopping bags while 65% wanted any action to apply only to plastic bags.
Sean Brennan, Vice-Chair of London Councils said: "Londoners have clearly signalled that they want action on plastic bags - feeling strongly enough to call for an outright ban.
"I am sure London's council leaders will listen to their calls before finalising the proposal in the tenth London Local Authorities Bill."
Every year Londoners use at least 1.6bn bags, of which only one in 200 are recycled, official figures show.
Secretary of State for the Environment, Hilary Benn, said: "We pledged in our Waste Strategy 2007 to work to phase out free single use carrier bags but we need the support of consumers and retailers to make that happen.
"The public has a vital role to play, both in taking action to cut their own bag use, and in sending a clear message to retailers that they expect them to act too".