What is hot dog in Spanish?

The most common translation for "hot dog" in Spanish is "perro caliente".

However, you might also see these variations:

* "salchicha caliente": This translates literally to "hot sausage".

* "frankfurter": This is a more formal term, often used in restaurants.

* "pancho": This is a more informal term, popular in some Latin American countries.

The best choice will depend on the context and your audience.