* Significant French community: London has a large and long-standing French community, with many people having moved from France or having French ancestry.
* High number of French speakers: London is a global city with a large international population, and French is a widely spoken language worldwide. It's likely that many people in London learned French as a second language.
* No precise data: While it's likely that a significant number of Londoners speak French, the actual number is unknown.
Instead of a precise number, here are some factors that contribute to the French-speaking population in London:
* Immigration: A large number of French people have immigrated to London over the years.
* Tourism: London is a major tourist destination, attracting many French visitors.
* Education: French is often taught as a foreign language in schools, contributing to a pool of French speakers.
* Business: Many businesses in London operate with French partners or clients, requiring French language skills.
It's safe to say that there is a significant population of French speakers in London, but without accurate data, any specific number would be a guess.