Background: spinal anesthesia is frequently accompanied by hypotension, which may be defined in absolute terms as a systolic blood pressure of 90 or 100 mmHg or in relative terms as a percentage (20% fall from baseline). The severity of hypotension depends on the height of the block, the position of the patient and the volume status. Aim of the Work: to compare the effect of performing spinal anesthesia in sitting versus lateral position on patient hemodynamics (blood pressure and heart rate). Patients and Methods: after approval from departmental ethics committee and written informed consent from the patient, a randomized study was conducted on eighty patients with American society of anesthesiologists physical status I and II aged from 21 to 50 years of both genders.  The study conducted from January 2018 to May 2018. Preoperative investigations were done according to the local protocol designed to evaluate the patients. Results: The onset of sensory block of spinal anesthesia (the time needed to reach the sensory level between T8 & T10) was relatively faster in lateral group (3.93 ± 1.05) than in sitting group (4.40 ± 1.26) but, these differences were statistically not significant. Conclusion: because we have used hyperbaric bupivacaine, it is more likely that the drug settled down more quickly in the sitting position than in the lateral position.