Introduction: There has been a growing interest in spirituality, considering the role of this human dimension in the process of patient recovery. This study aimed to determine the relationship between spiritual health and glycemic control in type II diabetic patients.

Methodology: In this descriptive, correlational study, 50 diabetic patients, admitted to Imam Musa Ibn Jafar Hospital, were recruited via convenience sampling in Quchan, Iran in 2014. Data were collected, using the spiritual well-being scale by Ellison & Levin. Venous blood samples were obtained for measuring the patients' fasting blood sugar level. For data analysis, descriptive statistics, t-test and Pearson's correlation test were performed, using SPSS version 18.

Results: The mean score of spiritual health was 169.160, which indicates the high level of spirituality among patients. The results of Pearson's correlation test demonstrated a significant relationship between spiritual health and type II diabetes.

Conclusion: In this study, the scores of spiritual health were not significantly different among patients with controlled and uncontrolled blood glucose. It is suggested that nurses consider cultural, spiritual and religious factors, which may affect glycemic control in the treatment of diabetic patients. Further case-control studies with a larger sample size are required to evaluate the effects of other factors such as educational level and age on glycemic control.