This research focuses on identifying individual cows based on features from their back regions captured by 3D cameras, aiming to enhance management efficiency and reduce labor burdens. The methodology involves using 3D cameras to collect data on cows walking through a milking parlor. The captured data is processed to extract specific features such as pixel counts and volume from the cow’s back region. Various classification methods, including SVM, k-NN, decision trees, and random forests, are employed to identify individual cows. Experimental results demonstrated that the random forest classifier achieved the highest accuracy at 95%, outperforming other methods. The study highlights the limitations of current RFID-based systems, such as cost and stress on animals, and presents a non-contact alternative that reduces labor and improves accuracy.