Background and Objectives; Hypotension is the commonest complication of spinaanesthesia. Hypotension may pose serious risk like loss of consciousness and cardiacrnarrest on mother (3)The objective of this studywas to evaluate theincidence and riskrnfactors of hypotension, severity of hypotension and onset time of hypotension afterrnspinal anesthesia given for cesarean section (C/S)at Tikuranbessa specialized hospital.rnMethod;a prospective analytic cross-sectional study was conducted on parturientwhornunderwentelective cesarean section with spinal anesthesia at Addis AbabarnUniversity;Tikuranbessa specialized hospital (TASH). Data was collected on Incidenceseverity and onset time of hypotension after spinal anesthesia was given andrnHypotension was correlated with Age, ASA physical status, Gravidity, Height, Weight, BMof mothers, amount of preloading volume, type of bupivacaine, dose of bupivacaine, usernof spinal additives and use of prophylactic vasopressors.Chi-Square test and multiplernlogistic regression analysis were used to assess significance of statistical association.rnResult;total of 144 mothersâ€™ data was collected. 103(71.5%) developed hypotension,rnsevere hypotension occurred in 57(55.3%) mothers, the first five minutes was therncommonest time for post spinal hypotension to occur. Maternal age (p= .01, 95%CI .011,rn.565), level of block height (p= .003, 95%CI .049, .547) and bupivacaine dose in ml (p=rn.046, 95%CI .277, 16.853)were been found to have significant association with post spinalrnhypotension.rnConclusion and recommendation; incidence hypotension was 71.5%, implementation ofrninterventions to reduce post spinal hypotension in TASH was quite poor with no protocoto standardize the practice of performing spinal anesthesia. We recommended to havernfurther study on similar topic by being more inclusive and wider sample size, to developrnprotocol which guides on conducting spinal anesthesia in standardized manner.