Centrifugal pumps are currently utilized across a vast array of domestic and industrial processes. From supplying the water used in residential buildings to industrial applications like food, beverage, and chemical manufacturing, different types of centrifugal pumps are required to effectively meet pumping requirements. The centrifugal pumps can be classified based on many factors such as construction, design, application and industrial standards. Therefore, one centrifugal pump can be placed into different groups at the same time. In this article, we will introduce three classifications of centrifugal pumps.