| 2018 Dairy Farmers of Ontario Tankard | |
|---|---|
 | |
| Host city | Huntsville, Ontario |
| Arena | Canada Summit Centre |
| Dates | January 31-February 4, 2018 |
| Winner | John Epping |
| Curling club | Leaside Curling Club, East York, Toronto |
| Skip | John Epping |
| Third | Mathew Camm |
| Second | Patrick Janssen |
| Lead | Tim March |
| Finalist | Glenn Howard |
« 2017 2019 » | |
The 2018 Ontario Tankard, known as the Dairy Farmers of Ontario Tankard for sponsorship reasons was the 2018 provincial men's curling championship for Southern Ontario, was held from January 31 to February 4 at the Canada Summit Centre in Huntsville, Ontario. The winning John Epping team represented Ontario at the 2018 Tim Hortons Brier in Regina, Saskatchewan.
The event had a triple knockout format, rather than the traditional round robin event as done in previous years. The number of qualified teams increased from 10 to 12.