Is the orthodox church the same as the Byzantine?

The Orthodox Church and the Byzantine Church are closely related but not identical. The term "Orthodox Church" generally refers to the Eastern Orthodox Church as a whole, which includes various national churches, while "Byzantine" often refers to the specific historical and cultural context of the Eastern Roman Empire and its liturgical practices. The Byzantine Rite is one of the main liturgical traditions within the Orthodox Church, but the term "Orthodox" encompasses a broader range of practices and beliefs beyond just the Byzantine context.