Mercuriceratops is an extinct genus of herbivorous chasmosaurine ceratopsid dinosaur known from the Late Cretaceous (Campanian stage) of Alberta, Canada and Montana, United States.

[1] In 2014, the type species Mercuriceratops gemini was named and described by Michael Ryan, David Evans, Philip John Currie and Mark Loewen.

The holotype, ROM 64222, was found by Triebold, in layer of the Judith River Formation dating from the middle Campanian, about seventy-seven million years old.

It was found by Susan Owen-Kagen, a preparator at the University of Alberta, at a distance of 380 kilometres from the holotype, in Alberta in the Dinosaur Provincial Park, on the north bank of the Red Deer River, one kilometre east of Happy Jack's Cabin, in a layer of the lower Dinosaur Park Formation, two metres above the Oldman Formation.

The squamosal possesses a rear branch that is narrowed and rod-shaped instead of being blunt, triangular and tapering, the normal chasmosaurine form, or broadly rounded as with Triceratops.