Simulation-based training is essential for developing procedural confidence prior to clinical exposure. This study assessed the feasibility of using formalin-embalmed cadavers for ultrasound-guided femoral nerve block training among first-year medical students (n = 19). Participants received a 15-minute instructional video followed by 20 minutes of one-on-one guided practice. Pre- and post-training surveys showed significant increases in confidence across all measured domains (p < 0.001). Ultrasound visualization of key anatomic structures—including femoral nerve, artery, vein, fascia lata, and fascia iliaca—was consistently clear. In a timed skills test, 18 of 19 students successfully guided the needle to the target zone, averaging 106 seconds and 1.9 attempts. Higher instructor scoring correlated with perceived usefulness of the training. Findings support the use of formalin-embalmed cadavers as an effective, scalable training tool for early procedural education.