[Geocoding] Neighborhood boundaries polygon data

[Marcelo de Moraes Serpa]

Hi list!

I’m wondering if OpenStreetMap provides the shapefiles or geojson for neighbourhoods around the world, specifically the polygon boundaries for them? So far, the most reliable places I’ve found for this data were, in order of
reliability: google maps (not open source and the data isn’t available), maponics (commercial API), quattroshapes (from foursquare, open source).

Quattroshapes is not bad, and has quite a few neighborhoods polygons for major cities around the world, however I’d still like to know if OpenStreetMap also provides this data? If so, where could I fetch it from?

Thanks!

— Marcelo