| AC | Algoma Central Railway (skr.), bývalá železnica v Severnom Ontáriu v Kanade |
|---|---|
| CAIRNS | jazero v Kanade (Ontario) |
| DORCHESTER | kanadské mesto v provincii Ontário |
| NOBEL | dedina v Ontáriu v Kanade |
| OEN | Ontario Environmental Network (skr.) |
| ONT | Ontario (skr.) |
| TVO | TV Ontario (skr.) |