From the Wikipedia page 
Maida Avenue, Warwick Crescent and Blomfield Road, the streets in the south of Maida Vale overlooking Browning's Pool including the section of Randolph Avenue south of Clifton Gardens are known as Little Venice. According to one story, the poet Robert Browning, who lived in the area from 1862 to 1887, coined the name. However, this was disputed by Lord Kinross in 1966 and by London Canals. Both assert that Lord Byron humorously coined the name, which is now applied more loosely to a longer reach of the canal system. Browning's Pool is named after the poet, and is the junction of Regent's Canal and the Paddington arm of the Grand Union Canal.
South Maida Vale is one of London's prime residential areas, and it is also known for its shops and restaurants, as well as the Canal Cafe Theatre, the Puppet Theatre Barge, the Waterside Café and the Warwick Castle pub. A regular waterbus service operates from Little Venice eastwards around Regent's Park, calling at London Zoo and on towards Camden Town. Since 1983 the Inland Waterways Association has hosted the Canalway Cavalcade in Little Venice.