What is the only communist Spanish Speaking country?

There is no country that is currently considered to be communist and Spanish-speaking. While some countries in Latin America have had socialist or Marxist-inspired movements and governments, none have fully implemented a communist system.

Cuba, for example, is often considered a communist state, but it is more accurately described as a socialist state with a one-party system. It has gone through significant economic and political changes in recent years, including some measures towards a more market-oriented economy.

It's important to note that the term "communist" has been used in different ways throughout history and can be a source of debate.