The 2013 Tohoku Rakuten Golden Eagles season was the 8th season of the franchise in Nippon Professional Baseball, also their 8th season under Rakuten, also their 8th season at then-named Nippon Paper Kleenex Stadium (now Rakuten Seimei Park Miyagi), and also their 8th season in Sendai.

The Eagles won their first and only Pacific League pennant and their first and only Japan Series championship as of 2022.

[1] The Eagles hosted five home games outside of Nippon Paper Kleenex Stadium in 2013.

Four were played at chihō, or "countryside", ballparks in Fukushima, Iwate, Yamagata, and Akita Prefectures in Japan's Tōhoku region and the fifth was played at the Tokyo Dome in Tokyo.

[4] Friday, March 29, 2013, vs. Fukuoka SoftBank Hawks[5] The Eagles defeated the Chiba Lotte Marines in the Climax Series, then defeated the Yomiuri Giants in the Japan Series.