2023–24 ECAC Hockey men's season

The 2023–24 ECAC Hockey men's season was the 63rd season of play for ECAC Hockey and will take place during the 2023–24 NCAA Division I men's ice hockey season. The season began on October 7, 2023, and concluded on March 31, 2024 with Quinnipiac losing in the East Regional Final of the NCAA tournament.

Coaches
Colgate hired Mike Harder to replace Don Vaughan who had retired after 30 years as the team's head coach.

Non-Conference record
ECAC suffered in the rankings for two primary reasons; their poor non-conference record and the strength of their non-conference opponents. Only two of the twelve conference members (Cornell and Quinnipiac) ended up with winning records against other conferences. With other teams had marks close to .500, several members were far below even on the season. Harvard had a particularly bad campaign, losing all seven games out of conference. Because several of the wins that ECAC teams earned came against low-ranked opponents, they did not provide as much benefit to the conference as a whole. The end result was that, despite being undefeated in non-conference play and finishing with a record around .700, Cornell was still unable to ensure an at-large bid to the NCAA tournament.

Leading scorers
GP = Games played; G = Goals; A = Assists; Pts = Points; PIM = Penalty minutes

Leading goaltenders
Minimum 1/3 of team's minutes played in conference games. GP = Games played; Min = Minutes played; W = Wins; L = Losses; T = Ties; GA = Goals against; SO = Shutouts; SV% = Save percentage; GAA = Goals against average

Pairwise
Note: teams ranked in the top-10 automatically qualify for the NCAA tournament. Teams ranked 11-16 can qualify based upon conference tournament results.

2024 NHL Entry Draft
† incoming freshman