Gluten-Free Confidence Score: 5/10
There is only one flavor of Doritos that Frito Lay lists as being gluten-free is DORITOS® Toasted Corn Tortilla Chips. You can see official Frito Lay list here.
Notice that further down that list, many varieties of Doritos are listed as “not containing gluten ingredients”, but Frito Lay stops short of calling all those flavors of Doritos “gluten-free”. That means that for many flavors of Doritos there is a chance for cross-contamination during the manufacturing process. Depending on your gluten sensitivity level, this is a product you should be cautious consuming.