Cuba is a Republic, and if you mean country, then yes.
A nation with a constitution is a republic. A nation that elects the head of the state and representatives in the parliament to form a government is democratic. Democratic Republic is a form of government elected by the people with the constitutional head in accordance to the constitution is a Republic.
To preserve their nation (the Republic of South Vietnam).
The President of India address the nation on the republic day of India.
The Republic of Guinea is an independent nation.
The Dominican Republic is a sovereign country.
Haiti is west of the Dominican Republic.
It was Portugal!
the Czech republic became its own nation in 1993.
China
The Republic of Ireland.
Republic