The 2018 Esso Cup was Canada's tenth national women's midget hockey championship, contested April 22–28, 2018 at Bridgewater, Nova Scotia.

Northern Selects advance by winning regional championship played March 29–April 1, 2018 at Mount Pearl, Newfoundland and Labrador.

Pionnièeres le Lanaudière advance by winning LHFDQ Midget AAA championship played April 13–15, 2018.

[5] Brampton Canadettes advance by winning Ontario Women's Hockey Association championship played April 5–8, 2018 at Toronto, Ontario[6] Saskatoon Stars advance by winning regional championship played April 6–7, 2018 at the T.G.

[7] St. Albert advanced by winning regional championship played April 6–8, 2018 at Richmond, British Columbia.