This is the 1999-2000 ECAC East Men's Hockey season.
- The league loses Amherst Lord Jeffs, Bowdoin Polar Bears, Colby Mules, Connecticut College Camels, Hamilton Continentals, Middlebury Panthers, Trinity Bantams, Wesleyan Cardinals, and Williams Ephs when they form the New England Small College Athletic Conference.
|ECAC East||Overall Record|
|Salem State Vikings||17||8||7||2||69||68||18||27||15||9||3||117||90|
|New England College Pilgrims||17||6||10||1||43||76||13||26||11||13||2||77||110|
|Southern Maine Huskies||17||5||9||3||77||71||13||262||11||12||3||135||106|
|St. Anselm Hawks||17||5||11||1||46||70||11||26||12||13||1||102||93|
note: goal and win/loss totals don't equal out for conference standings, verified by 3 sources (the conference appears to have played a limited interlocking schedule with the New England Small College Athletic Conference).
- Norwich defeated Babson 7-4
- New England College defeated Southern Maine 7-3
- Salem State defeated Skidmore 6-1
- Mass-Boston defeated MCLA 6-1
- Norwich defeated New England College 6-1
- Salem State defeated Mass-Boston 3-1
- Norwich defeated Salem State 3-2
The Norwich Cadets advanced to the 2000 NCAA Division III Men's Ice Hockey Tournament winning the national championship.