The 2017 Boston Red Sox season was the 117th season in the team's history, and their 106th season at Fenway Park. They finished with 93 wins and 69 losses, the same record as their previous season, two games ahead of the second-place New York Yankees. It was also the team's first season in 15 years without David Ortiz, due to his retirement. The Red Sox won their second straight American League East championship, the first time the team won the division in consecutive years; it was their ninth division title overall. In the postseason, they lost the American League Division Series in four games to the eventual 2017 World Series champions, the Houston Astros.

The 2016 Boston Red Sox season was the 116th season in the franchise's Major League Baseball history. The Red Sox finished first in the American League East for the first of three consecutive seasons with a record of 93 wins and 69 losses. In the postseason, the team was swept by the American League Central champion Cleveland Indians in the ALDS. This was the final season for 3-time World Series champion David Ortiz.