Objectives:To analyze the existence of fuzzy quotient-3 cordial labeling on the generalized Petersen graph. Methods: The method involves mathematically defining how to label the vertex of a generalized Petersen graph and demonstrating that these formulations produce fuzzy quotient-3 cordial labeling. Findings: In this study, we proved that the generalized Petersen graph GP (η, m) , 1 ≤ m < ⌊ η 2 ⌋ is fuzzy quotient-3 cordial, except for η ≡ 0( mod 6).