There are approximately 45,000 different Christian denominations worldwide as of 2024.
Until the Protestant Reformation, the Christian Church was largely composed of only two groups or “denominations”: the Roman Catholic Church in the west and the Greek Orthodox Church in the east.
With the Reformation, however, as neglected Bible truths began to be restored and emphasized, different denominations arose holding different doctrinal positions on a number of issues. Sometimes these differences were rather minor; in other cases, they were quite significant.
Estimations show there are more than 200 Christian denominations in the U.S. and a staggering 45,000 globally, according to the Center for the Study of Global Christianity.