Background: Obsessive-compulsive disorder (OCD) is described as one of the most common, disabling, and resistant disorders. This disorder is separated from the other anxiety disorders in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-V), in this revision, a prominent feature of the disorder is obsessive and recurrent preoccupation , awide spread group of symptoms that include intrusive thoughts, rituals, preoccupations, and compulsions represents OCD. Aim of the study: was to assess resilience and suicidal ideation among patients with obsessive -compulsive disorder. Subjects and methods: A cross-sectional design was adopted to carry out this study. Setting: The study was conducted at psychiatric outpatient clinic at Zagazig University Hospitals and Abbasyia Hospital for mental health in Cairo city. Subjects: A purposive sample of 140 patients with obsessive compulsive disorder. Tools of data collection: Four tools will be used to collect the necessary data for this study. They were: Socio-demographic questionnaire, Yale-Brown Obsessive Compulsive Scale (Y-BOCS), the Resilience Scale and scale for Suicidal Ideation. Results: The study reveals that more than two thirds of studied patients had mild obsessive compulsive level, more than half of patients had a moderate level of resilience , slightly more than two-thirds of studied patients had suicidal ideation. Conclusion: positive and significant correlation was found between patients’ obsessive-compulsive scores and suicidal ideation scores. Negatively significant correlations were found between resilience and each patient's obsessive-compulsive score and suicidal ideation: Recommendations: Developing psychoeducation program to patients and family member (s) about OCD, its course, treatment options including duration of treatment. Future researches to implement longitudinal studies to establish the causality between OCD patients’ resilience and suicidal ideations symptoms is recommended.