Piazza San Marco: Head to cafe Florian or Quadri for live music. Crowds gather to listen to popular tunes, but you'll enjoy it more sitting down enjoying the magical scenery of Piazza San Marco lit at night. 

Casanova Music Cafe: This is Venice's only Disco, located on busy Lista di Spagna in the Cannareggio district. Although the space can feel somewhat cramped at times, it still offers some reasonably eclectic music, ranging from Rock to House to Latin American Music. Lista di Spagna, Cannareggio 158/a   This Music cafe was closed in 2007

Piccolo Mondo: Opposite the Accademia cinema, this tiny club attracts a young crowd and is usually packed and lively. Calle Contarini Corfu, Dorsoduro 1056/A

Martini Scala Club Piano Bar: Enjoy live music while you dine in this elegant establishment. Dress appropriately. Campo San Fantin, San Marco 1980.

Le bistrot de Venise: Venitian cusine with some very ancient and succulent recipes.  But very expensive   Enjoy a diverse cultural programme while you eat, ranging from cabaret to poetry readings. Calle dei Fabbri, San Marco 4685

Casino Municpale: The elegant Palazzo Vendramin calergi is locatedon the Grand Canal (vaporetto stop: San Marcuola). For a 10 Euros entrance fee (which entitles you to a 10euros free casino chip), you'll get to bask in the magnificant 18th century setting of the palace. Truly a memorable evening, even for non gamers.

947Club: Amazing lounge atmosphere with live DJ and excellent service; has an upscale restaurant attached, as well. Castello 4337.

Campo Santa Margherita - a square, 10 mins walk SE of Piazzale Roma, witha few bars at either end.  Young people, good music and pretty girls.  Full of people, live show and drinks tents at Carnival time.  Bars till 3 or 4am.

Stazione Marittima - a large disco and beer / wine hall by the river on the south of the main island, few mins walk SW from square above.  Directly south of Piazzale Roma (where all the vehicles stop). You will hear the music and see the lights, was very busy at Carnival time.  Must see.  Closes about 3 or 4am.