Background: Stress urinary incontinence (SUI) is most prevalent gynecological urinary disease among multiparous women. It has negative impact on various areas of the woman's life, including physical, psychological, sexual, social and occupational aspects. Many non- pharmacological methods are accessible for the management of SUI, both hypopressive exercises and pelvic floor muscle exercises are viable options for non-invasive and cost-effective modalities of management that can be employed to prevent the occurrence of stress urinary incontinence and to decrease its severity. Aim of the study: to determine the effect of hypopressive exercises versus pelvic floor muscle exercises on stress urinary incontinence among multiparous women. Design: A quasi-experimental research design was employed. Setting: This study was carried out at Kafr El-Sheikh General Hospital, Kafr El-Sheikh Governorate, Egypt. Subjects: A Convenient sample of 100 multipara women were recruited based on certain criteria. Tools: Data was collected using two tools namely, structured interview questionnaire and Revised Urinary Incontinence Scale (RUIS). Results: The study results revealed a highly statistically significant difference between total severity of stress urinary incontinence in hypopressive and pelvic floor muscle groups after 4, 8 and 12 weeks follow up of intervention, where (p < 0.000). Conclusion: The current study concluded that the hypopressive group generally demonstrated a lower degree of severity regards stress urinary incontinence as compared to the pelvic floor muscle group. Recommendations: It is suggested that developing an awareness program pertaining to the significance and advantages of engaging in hypopressive exercises.