We'll also tell you which stores typically carry it...
Which Grocery Store Aisle Is Oat Bran In?
First, check the cereal aisle for oat bran. It will probably be near oatmeal and cream of wheat, but it could possibly even be around the muesli and granola.
Try the baking aisle next. You may see it on the shelves near the flours or bread-making ingredients.
If your grocery store has a health food aisle, you might give that a shot. Otherwise, look for any aisle with natural foods.
Lastly, look in the bulk section. But if you can't seem to find it, check one of the stores listed below...
What Stores Sell Oat Bran?