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Background: Multimodal analgesia is used to control postoperative pain in inguinal hernia repair. Transversus Abdominis plane block is an effective regional anesthesia technique for postoperative analgesia in inguinal hernia repairs. The Erector Spinae plane block applied to the low thoracic region was also reported to provide effective analgesia in these surgeries. Aim and Objectives: To assess and compare the analgesic efficacy of Erector Spinae plane block with that of Transversus Abdominis plane block after inguinal hernia surgeries. Subjects and Methods: A prospective randomized clinical study, conducted at Ain Shams University hospitals, Cairo, Egypt on 56 patients divided into 2 groups: (Group 1) (ESP group); 28 patients received unilateral ultrasound guided ESP block, (Group2) (TAP group); 28 patients received unilateral ultrasound guided TAP block during a period of 6 months. Result: There was high statistically significant difference between the studied groups as regard first analgesic request and total analgesic consumption. Conclusion: ESPB is a more effective regional block technique for postoperative pain relief in patients undergoing inguinal hernia repair than TAPB. In which The ESP block has a longer duration of analgesia, delays the time to first requirement for analgesia, and reduces analgesic consumption when compared with the TAP block and can be used in multimodal analgesia and opioid-sparing regimens [ABSTRACT FROM AUTHOR]