There are a few theocracies in the Middle East, like Iran or Saudi Arabia.
There are also "weak theocracies", where the ruler retains control over the church of the country, but laws are not necessarily promulgated based on the religious views of the ruler, such as the UK or Morocco.
Yes, when religious leaders run a government it is a theocracy. Many countries today are still theocratic.
Many Muslim countries are governed by the principles of Islamic law, but only Iran is actually ruled by the Islamic clergy, and is therefore the only true theocracy. Afghanistan, when it was ruled by the Taliban, was also a theocracy, but now it is what might be described as a struggling democracy.
The Vatican
Are countries today following Keynesian's economic policies today?
yes
Iran is at least one.
Iran
Britain !vatican
iran
There are multiple countries that have a theocracy. One such country is Saudi Arabia and another is the country of Iran.
Vatican City is the only Christian theocracy on earth at this time.
Iran