The American organ is a musical instrument that is used widely across the United States. There are several synonyms for the term American Organ, and they include the Hammond organ, Wurlitzer organ, and Mason & Hamlin organ. These organs have been used for several decades, and they play a significant role in American music. The American Organ is often associated with jazz, blues, and contemporary music. The Hammond organ is perhaps the most popular of all the American Organ varieties and is widely used in churches and other places of worship. Despite the availability of several synonyms, the term American Organ remains the most commonly used term for this iconic instrument across the globe.