The highest official of the subject of the Russian Federation, also known as the holder of the highest office of subject of the Russian Federation (Russian: высшее должностное лицо субъекта Российской Федерации) or the head of the highest executive body of state power of the subject of the Russian Federation (Russian: руководитель высшего исполнительного органа государственной власти субъекта Российской Федерации) and colloquially and collectively referred to as the title Governor (Russian: губернатор - gubernator) or head of region (Russian: глава региона - glava regiona), is the head and the chief executive of each of the federal subjects of Russia, not directly subordinate to the federal authorities, but the political and ceremonial head of the federal subject, all of which are equal constituent entities of Russia.
The office is defined by the Constitution of Russia and Chapters 1, 3 and 4 of Russia's Federal Law No. 184-FZ "On the General Principles of the Organization Of the Legislative (Representative) and Executive Organs Of State Power of the Subjects of the Russian Federation" which came into force in 1999. According to the current revision of the Russian Constitution, the Russian Federation consists of 89 federal subjects (including the six regions of Ukraine that are occupied by Russia), therefore there are 89 offices of head of region in Russia (see List of current heads of federal subjects of Russia).
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