The Locke
Great outdoor drinking/eating spot, georges quay (http://www.lockebar.com/) dress a bit nicer for this bar. lovely atmosphere. great for a casual night of drinking with close friends or family.
Nancy Blake's Pub
Denmark St
Denmark street (http://www.nancyblakes.com) popular and crowded. live music most weeks
Charlie Malone's
Wolfe Tone St. Near Bowman St & Barrack Hill
Relatively quiet normally. Monday Nights draw in the crowds from Mary I as generally during the school semester a group of students from Mary I will play Irish Trad late in the night. The barmen here will make you feel quite at home. Though small its quite cozy.
Peter Clohessys Bar
Howleys quay (http://www.peterclohessy.ie/) perfect spot to catch a munster match on the tv.