2019–20 Dartmouth Big Green men's ice hockey season

The 2019–20 Dartmouth Big Green Men's ice hockey season was the 114th season of play for the program and the 59th season in the ECAC Hockey conference. The Big Green represented the Dartmouth College and were coached by Bob Gaudet, in his 23rd season as their head coach. After the season Gaudet announced his retirement.

Roster
As of November 26, 2019.

Schedule and Results
!colspan=12 style=";" | Exhibition

!colspan=12 style=";" | Regular Season

!colspan=12 style=";" | Ledyard Bank Classic

!colspan=12 style=";" | ECAC Hockey Tournament


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 * colspan=12|Dartmouth Lost Series 0–2