Oslo has a very good nightlife. The people here love to go out for a drink, especially a beer. You meet all kind of people during the night. There is many nightclubs, discoes and bars. The discoes and nightclubs has covercharge (about 60KR). All of them asks for ID, and you have to be of age 18 or more. Some places you have to be 23 or more.
The most popular clubs are around the main street, Karl Johans gate.They are easy to find and there is no big differencies between them, so just go in. You will also find many theaters. The most popular one is in Majorstua area called Coloseum. It is THX with a very big screen and greate sound. The other ones are in National Theater and Vika area. There is also an opera and classical music place. Its on Storgata near the Central Station.
Warning: Its really hard to get a cab late at night so be aware that you maybe have to wait 30 minutes or more for a cab home
Dance Clubs
Oslo's beautiful people congregate at the elegant Barock (Universitetsgt. 26, Oslo, PHONE: 22/42-44-20).
The main gay bar in town is Club Castro (Kristian IV's Gt. 7, Oslo, PHONE: 22/41-51-08), which is renowned for its energetic dance floor.
Cosmopolite (Industrigt. 36, Oslo, PHONE: 22/69-16-63) has a big dance floor and music from all over the world, especially Latin America.
Den Sorte Enke (The Black Widow, Karl Johans Gt. 10, Oslo, PHONE: 22/33-23-01), Oslo's self-designated "gay-house," attracts a crowd of mainly younger men to dance the night away.
Lipp (Olav V's Gt. 2, Oslo, PHONE: 22/82-40-60) is extremely popular as a restaurant, nightclub, and bar.
Potpurriet (Ovre Vollgt. 13, Oslo, PHONE: 22/41-14-40) organizes well-attended women's dance nights on the last Friday of each month.
Smuget (Rosenkrantz' Gt. 22, Oslo, PHONE: 22/42-52-62) is an institution: live rock and blues every night except Sunday bring crowds who then flock to the in-house discotheque.
Music Clubs
Galleria (Kristian IV's Gt. 12, Oslo, PHONE: 22/42-29-46) has a live jazz club, a disco, and a bar filling up its three art-bedecked floors.
Herr Nilsen (C.J. Hambros Pl. 5, Oslo, PHONE: 22/33-54-05) features some of Norway's most celebrated jazz artists in a Manhattanesque setting. There is live music three days a week and a jazz café on Saturday afternoons.
Oslo Jazzhus (Stockholmsgt. 12, Oslo, PHONE: 22/38-59-63) is in an out-of-the-way location and is open only Thursday through Saturday, but the music is worth the journey.
Oslo Spektrum (Sonia Henies Pl. 2, Oslo, PHONE: 22/05-29-00) is one of Norway's largest live-music venues. Just behind Oslo City shopping center, it attracts big names, such as Alanis Morissette and Rod Stewart.
Rockefeller/John Dee (Torggt. 16, Oslo, PHONE: 22/20-32-32) features alternative musical acts, like Nick Cave and Neil Finn.
Stortorvets Gjaestgiveri (Grensen 1, Oslo, PHONE: 22/42-88-63) often presents New Orleans-style and ragtime bands and is known for its swinging dance nights.
Bars and Lounges
The Backyard Cruising Bar (Theatergaten 3, Oslo, PHONE: 22/20-62-99) is a gay bar with an excellent top-floor restaurant.
Barbeint (Drammensvn. 20, Oslo, PHONE: 22/43-87-88) is an ultrahip spot where students, media folk, and local celebrities from the fashionable Frogner district convene on their way in from or out on the town. Avant-garde art adorns the walls, and the loud, cutting-edge music ranges from funk-metal and rock to rap.
The trendiest twentysomethings drink the night away at Beach Club (Aker Brygge, Oslo, PHONE: 22/83-83-82), a kitschy American hamburger joint with life-size stuffed fish on the walls and diner-style tables and booths.
If you're more partial to lounging than drinking, try the English-style bar at the Bristol (Kristian IV's Gt. 7, Oslo, PHONE: 22/82-60-00).
For variety, get an outdoor table at Lorry (Parkvn. 12, Oslo, PHONE: 22/69-69-04), just over from the Royal Palace. Filled with a cast of grizzled old artists, the place advertises 204 brews, but don't be surprised if not all of them are in stock.
For the serious beer connaisseur, Oslo Mikrobryggeriet (Bogstadvn. 6, Oslo, PHONE: 22/56-97-76) brews eight varieties of beer, including the increasingly popular Oslo Pils, on the premises.
Studenten Bryggeri (Karl Johans Gt. 45, Oslo, PHONE: 22/42-56-80), a microbrewery, is often packed with students and loud music as well.