Hisashi Iwakuma is a Japanese former professional baseball pitcher. He has played in Nippon Professional Baseball (NPB) for the Osaka Kintetsu Buffaloes from 2000 to 2004, Tohoku Rakuten Golden Eagles from 2005 to 2011, and Yomiuri Giants in 2019, and all of his time in Major League Baseball (MLB) for the Seattle Mariners from 2012 to 2017. Iwakuma retired in 2020 due to lingering shoulder issues that had prevented him from playing that year.

The Tohoku Rakuten Golden Eagles , often shortened as the Rakuten Eagles , are a baseball team based in Sendai, Miyagi Prefecture, Japan. It has played in Nippon Professional Baseball's Pacific League since the team's formation in November 2004. The team is owned by the Internet shopping company Rakuten.