The league announced the finalists Thursday. The winner will be revealed June 18.
Lidstrom is seeking his seventh Norris and fourth in a row. He ranks third among NHL defensemen in scoring with 59 points (16 goals, 43 assists).
Chara is a finalist for the second straight season. He led a Bruins defense that allowed the fewest goals per game in the league.
Green led all defensemen in scoring with 73 points (31 goals, 42 assists) to become a finalist for the first time. He's the first defenseman to score 30 goals in a season since the Capitals' Kevin Hatcher in 1992-93.