Portobello Road is a street in the Notting Hill district of the Royal Borough of Kensington and Chelsea in west London. It runs almost the length of Notting Hill from south to north, roughly parallel with Ladbroke Grove. On Saturdays it is home to Portobello Road Market, one of London's notable street markets, known for its second-hand clothes, pastries and antiques. Every August since 1996, the Portobello Film Festival has been held in locations around Portobello Road and in 2015, Portobello Radio was founded as the area's community radio station.

Portobello Road was known prior to 1740 as Green's Lane – a winding country path leading from Kensington Gravel Pits, in what is now Notting Hill Gate, up to Kensal Green in the north.