Langenbrunner will turn 37 this month. Last season, his first with the Blues, he had six goals and 18 assists in 70 games.
"We are excited that Jamie has agreed to stay in St. Louis," Blues general manager Doug Armstrong said. "His professionalism and leadership both on and off the ice are invaluable assets for our club."
Langenbrunner has won two Stanley Cups during his 16 NHL seasons -- in 1999 with the Dallas Stars and in 2003 with the New Jersey Devils.
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