Final answer:
Honduras is the country with the Gulf of Honduras on its southeast coast, sharing borders with Guatemala, El Salvador, Nicaragua, and coastal boundaries with the Caribbean Sea and Pacific Ocean.
Step-by-step explanation:
The country with the Gulf of Honduras on its southeast coast is Honduras. The Gulf of Honduras is a large inlet of the Caribbean Sea, and Honduras has a coastline on this gulf to the north. Additionally, Honduras shares borders with several countries: Guatemala to the west, El Salvador to the southwest, Nicaragua to the southeast, the Pacific Ocean at the Gulf of Fonseca to the south, and as previously mentioned, the Gulf of Honduras to the north. With a diverse history including its economic development shaped by the fruit export industry, Honduras is an integral part of Central America and is widely known for not experiencing civil wars despite being situated in a region with some politically unstable neighbors.