There is more than one.
Morocco, Equatorial Guinea and Mongolia being three examples.
Bangladesh. It is surrounded by India on all sides except for a small border with Burma (Myanmar) to the far southeast and Bay of Bengal to the South
Lesotho
The only bordering country is England, the rest of Scotland is surrounded by water.
The only independpent Spanish speaking countries that are completely surrounded by water are the Dominican Republicand Cuba.
Being landlocked is no hinderence to being a developed country. You could claim it is an advantage. A land-locked country is surrounded on all 4 sides with other countries with which it can trade. A coastal countries only has trade partners on some sides. A coastal country needs ships and ports to trade. In former times, before railways, sea and river trade was faster and cheaper than overland. This is no longer the case.
Hawaii is considered an island, since by definition an island is surrounded by water on all sides, whereas a peninsula is typically only surrounded by water on three sides.
Only Bahrain is " surrounded by the Persian Gulf"
This is called a landlocked country. These countries do not have direct access to the sea or any ocean. Examples include countries like Bolivia, Nepal, and Switzerland.
The only countries surrounded by other countries in Europe would be San Marino and Vatican City, which are both surrounded by Italy. Vatican City is completely surrounded by Rome and is only one city. San Marino is composed of nine cities and is neighbored by numerous Italian cities in Northern Italy. Monaco could also technically be classified as being surrounded by France, however, its located on the French Mediterranean coast. Monaco is composed of six cities.
Monaco is bordered only by France, but it is also a coastal country, so it is not completely surrounded by France.
No. Landlocked means having no coastline. Completely surrounded by other countries. Scotland has water on three sides and only one land border ,with England.
Only one: Lesotho. Lesotho is entirely surrounded by South Africa and is one of the the only three countries to be entirely surrounded by another country. The other two are San Marino and Vatican City, entirely surrounded by Italy.