"Since joining the organization last November, Bruce has done an outstanding job with the team," said executive vice president and general manager Bob Murray, who brought in Boudreau when he fired Randy Carlyle on Nov. 30. "He's committed to us and determined to lead us back to the playoffs."
Boudreau was originally under contract with Anaheim through the 2012-13 season. No financial terms were disclosed.
"It's always great that the GM and ownership have that much faith in you, and it's my job to justify it," Boudreau said via the team's Twitter account.
Boudreau led the Ducks to a 27-23-8 record in 58 games after taking over for Carlyle, including a 24-15-6 mark after Jan. 1 that ranked fifth in the Western Conference.
He has a career record of 228-111-48 in 387 games with Anaheim and Washington for a .651 winning percentage. Since making his coaching debut with Washington on Nov. 23, 2007, Boudreau is tied with Detroit's Mike Babcock for the most standings points earned (504), while ranking second in wins with 228, one behind Babcock.
The Ducks were one of the hottest teams in the NHL in late January and February, but were unable to overcome their early struggles and missed the playoffs. But Boudreau said he's optimistic that the team is on the way up.
"I think this team has just started going where we want to go," Boudreau said. "We competed with all the teams that are in the playoffs now."
During his time as coach of the Capitals, Boudreau won the 2007-08 Jack Adams Award as the NHL's Coach of the Year and led his club to the 2009-10 Presidents' Trophy as the NHL's top finisher in the regular season. He posted a record of 201-88-40 and led the Caps to four straight Southeast Division titles. Boudreau became the fastest coach in modern-day NHL history to win 200 games and recorded more wins (184) in his first 300 games than any NHL coach.
Before joining the Capitals, Boudreau spent nine seasons as an AHL coach, winning a Calder Cup championship with the Hershey Bears in 2006.