The 78th Grey Cup was the 1990 Canadian Football League championship game played between the Winnipeg Blue Bombers and the Edmonton Eskimos at BC Place Stadium in Vancouver, British Columbia. The Blue Bombers defeated the Eskimos, 50–11.

Winnipeg Blue Bombers (50) – TDs, Warren Hudson (2), Lee Hull, Greg Battle, Perry Tuttle, Rick House; FGs, Trevor Kennerd (2); cons., Kennerd (6), safety touch.

Edmonton Eskimos (11) – TDs, Larry Willis; FGs Ray Macoritti; cons., Macoritti; single, Macoritti.

First Quarter
WPG – FG Kennerd 14 yards
WPG – TD Hull 11 yard pass from Burgess (Kennerd convert)

Second Quarter
EDM – Single Macoritti 56 yard punt
EDM – FG Macoritti 37 yards

Third Quarter
WPG – TD Battle 34 yard interception return (Kennerd convert)
WPG – TD Tuttle 5 yard pass from Burgess (Kennerd convert)
WPG – TD Hudson 18 yard pass from Burgess (Kennerd convert)
WPG – TD Hudson 2 yard run (Kennerd convert)

Fourth Quarter
EDM – TD Willis 20 yard pass from Ham (Macoritti convert)
WPG – Safety West tackle on Ham
WPG – FG Kennerd 14 yards
WPG – TD House 56 yard pass from McManus (Kennerd convert)

Edmonton started using a receiver formation known as the "five-pack" which had been very effective in the Western final. Quarterback Tracy Ham drove Edmonton from their own 32 yard line to the Winnipeg 16. After a procedure penalty, Ham's pass was intercepted by Greg Battle at the 1 yard line and returned to the Edmonton 43. Bomber quarterback Tom Burgess led his team to the Edmonton 14 yard line, but could not score the touchdown, as his pass was nearly intercepted by Brett "The Toaster" Williams. Trevor Kennard kicked a 14-yard field goal.