The big-name Canadians became the lastest NHL players to join a European team by signing with Eisbaren Berlin of the DEL and will play with the Polar Bears throughout the lockout.
Veteran agent Pat Brisson of CAA Sports, who represents both players, confirmed the signings to ESPN.com.
Giroux, third in NHL scoring last season with 93 points (28-65), also had interest from teams in Russia, Switzerland and the Czech Republic, but chose Berlin.
Flyers teammate Matt Read is headed abroad as well, joining Sodertalje in Sweden, his agent, Neil Sheehy, told ESPN.com Friday.
Read had 24 goals and 23 assists in 79 games with the Flyers last season, his first in the NHL.
Also on Thursday, Anton Volchenkov joined the growing list of NHL players to get a deal in Europe, signing to play in his native Russia. The New Jersey Devils defenseman reached agreement with KHL club Topedo, agent Jay Grossman confirmed to ESPN.com.