1970–71 Boston Celtics season

The 1970–71 NBA season was the Celtics' 25th season in the NBA. They missed the playoffs for the second straight season.

Regular season

 * z = clinched division title
 * y = clinched division title
 * x = clinched playoff spot

Awards and records

 * Dave Cowens, NBA Rookie of the Year Award
 * John Havlicek, All-NBA First Team
 * John Havlicek, NBA All-Defensive Second Team
 * Dave Cowens, NBA All-Rookie Team 1st Team