The 2011 Kelly Cup Playoffs of the ECHL started on April 4, 2011 following the end of the 2010–11 ECHL regular season. The playoff format remains unchanged from that of the 2010 postseason, with the exception of the changed conference names. 15 teams will qualify for the playoffs, being the top seven teams from the Western Conference and the top eight teams from the Eastern Conference.
In the Eastern Conference, postseason berths will be awarded to the first-place team in each division and the next five teams in the conference, based on points. The division winners will be seeded first, second and third and will play the eighth-place finisher, the seventh-place finisher and the sixth-place finisher, respectively, while the fourth-place finisher and the fifth-place finisher will meet. The conference semifinals will have the winner of the first-place and eighth-place matchup will meet the winner of the fourth-place and fifth-place game while the winner of the second-place and seventh-place game will face the winner of the third-place and sixth-place matchup.
In the Western Conference, postseason berths will be awarded to the first-place team in each division and the next five teams in the conference, based on points. The division winner with the best record in the conference will receive a bye in the first round. The other division winner will be seeded second and meet the team that finishes seventh in the conference in the first round. The other first round matchups will be the third-place finisher in the conference against the sixth-place finisher in the conference and the fourth-place finisher in the conference against the fifth-place finisher in the conference. The conference semifinals will have the first-place finisher meeting the winner of the fourth-place and fifth-place matchup and the winner of the second-place finisher and seventh-place finisher against the winner of the third-place finisher against the sixth-place finisher.
The first round in each Conference will be a best of five series with each subsequent round being a best of seven series.
After the regular season, 15 teams qualified for the playoffs. The Alaska Aces were the Western Conference regular season champions and the Brabham Cup winners with the best record at 97 points. The Greenville Road Warriors earned the top seed in the Eastern Conference and finished the season with 96 points.
GP = Games played; W = Wins; L = Losses; SA = Shots against; GA = Goals against; GAA = Goals against average; SV% = Save percentage; SO = Shutouts; TOI = Time on ice (in minutes); Yellow shade = team still in playoffs