The 1980 CIAU Men's University Cup Hockey Tournament (18th annual) was held at the Sherwood Ice Sports Centre in Regina, Saskatchewan. The Regina Cougars served as tournament host.
<small>Note: * denotes overtime period(s)</small>
<small>Note: * denotes overtime period(s)</small>
<small>Note: * denotes overtime period(s)</small>
<small>Note: * denotes overtime period(s)</small>
<small>Note: * denotes overtime period(s)</small>
The format was mostly unchanged from the year before. The only alteration was that the selection committee chose to admit defending national champion and Canada West runner-up Alberta instead of GPAC runner-up Brandon. This was done partially because the two conferences had played an interlocking schedule during the season. The six teams were sorted by a committee prior to the tournament and arranged so that the host and wild card teams would be in opposite brackets.
In the round-robin groups, the teams that finished with the best record would advance to the championship game. If there was a tie for the best record, the first tie-breaker was goal differential. If there was a tie in goal differential, the teams would play sudden death overtime for the advantage.
<small>Note: * denotes overtime period(s)</small><br> <small>Note: round-robin games were played on consecutive days March 13âÂÂ15</small><br>