As data from various sources accumulates, there is an increasing need to protect sensitive information, especially with advancements in technology and the rapid emergence of Artificial Intelligence (AI). Federated learning (FL) has been widely applied in Machine Learning (ML) and Deep Learning (DL), but its role in enhancing privacy in Data Mining (DM) tasks remains significant. This chapter explores how privacy is incorporated into DM using FL techniques. The focus is on privacy methods that have evolved from anonymization, randomization, and differential privacy to more recent FL approaches. Additionally, this review discusses different types of FL, including the Centralized Federated model, which aggregates model details but faces challenges like communication bottlenecks and server limitations. These challenges led to the Decentralized Federated Learning (DFL) approach, which effectively addresses these issues. We also review the metrics used in FL and examine applications where FL can enhance DM processes. By integrating FL into DM, this chapter demonstrates how privacy and efficiency can coexist, making it a promising area for future research.