YES
A sandwich is defined as “an item of food consisting of two pieces of bread with meat, cheese, or other filling between them, eaten as a light meal.” A hot dog is a piece of meat, in between two halves of bread. A hot dog can be covered in ketchup, mustard, chili, cheese or relish. These toppings can be classified as “other filling.” Therefore, a hot dog is in fact a sandwich. – Ben Allen

NO
A hot dog is its own thing, not necessarily eaten with bread. Even with bread, a hot dog is not a sandwich. Calling a hot dog a sandwich is the equivalent to calling Rosa Parks just a woman. If a hot dog was a sandwich, we would have to start calling our dogs sandwich dogs, not weiner dogs. You wouldn’t call a slice of deli meat a sandwich, so why is a hot dog? – Julie Connor