NOTE: The age to purchase alcohol in the United States is 21 years. In most cases this is strictly enforced, so be prepared to show a form of identification (either a locally-issued I.D. like a driver's license, or a passport)
Asylum - $ - V - Best dive bar in Adam's Morgan. A good place to go on the weekends when Adam's Morgan is filled with drunk idiots. If you like punk rock, you'll like this place. 2471 18th St NW
Black Squirrel - $ - V - Canadian owned pub with poutine and burgers. Lots of vegetarian options. Booze wise they have a nice beer list, with different beers served on all three floors, and absinthe as well. 2427 18th St NW
Phase One - $ - Phase is the oldest lesbian bar in the United States. A dive bar, it's the heart of the lesbian scene in DC.
Fado Irish Pub - $$ - A delightful Irish pub in the heart of a hotel. Good music (real Irish people work there!) and a good place for large groups. They live live music (acoustic) on the weekends. A surprisingly cool place in the heart of Chinatown. They also have standard pub fare as well. 808 7th St NW
Iron Horse - $$ - Motorcycle themed bar, two floors, with games in the basement (i.e. classic video games and carnival games). 507 7th St NW
RFD - $$ - One of the largest beer lists in the city, RFD is quite popular with locals and tourists alike. Better beer than food. Large place and good for big groups. 810 7th St NW
Off the Record - $$-$$$ - V - A legendary basement bar at the most historical hotel in the city. Across from the White House, Off the Record houses a history of Washington politico you'll only get in..well..Washington. Great old school cocktails, a nice winelist, and nice small plates, too. It's quite an experience!
ChurchKey - $$ - The city's most famous beer hall, this place is a modern twist on the concept. The largest beer list in the city, and one of the top 10 largest in the country, ChurchKey serves hundreds of beers on tap and in bottle, from around the world. The menu will make your beer loving mind explode. They also offer appetizers ranging from to die for housemade tater tots to foie gras. 1337 14th St NW
Bohemian Caverns - $$ - The coolest jazz venue in the city, Bohemian Caverns looks just like that - the decor is built to look like a cave. Miles Davis performed here, and it has affordable and more expensive options for live jazz depending on the day of the week. Really, one of the coolest places in town. 2003 11th St NW
DC9 - $ - Dive bar with a nightclub upstairs and a lounge downstairs. Cool, hip crowd and laid back. 1940 9th St NW
Nellie's Sports Bar - $$ - Don't let the name fool you, this is actually a gay "sports" bar, with multiple floors and as many personalities. A good place to watch a game also. 900 U St NW
Patty Boom Boom - $ - If you're into reggae, this is is your place. Live music and DJ's nightly, with the best reggae in the city. They also serve Jamaican patties and classic Jamaican cocktails. 1359 U St NW
Vinoteca - $$ - V - The city's finest wine bar is casual and cool with a contemporary feel. Wine by the glass and bottles from around the world, they also serve tapas style food. 1940 11th St NW