Context: Hypertension (HTN) is identified as the most common non-communicable disease. HTN is considered one of the causes of premature mortality worldwide. Aim: This review aimed to identify the HTN self-management practice gaps in the Kingdom of Saudia Arabia (KSA). Methods: Search for the narrative review was conducted by using different electronic databases (e.g., Cumulative Index to Nursing and Allied Health Literature, Medical Literature Online, the Excerpta Medica dataBase, Elsevier’s Science Direct, ProQuest, the EBSCO library database, and PubMed through Saudi Digital, as well as an Internet search using Google Scholar), books and manual search of journals’ references lists to find relevant studies. Using title searching generated keywords from the research aim to identify self-management practice gaps among patients with HTN. Results: The review demonstrates that there are HTN self-management practice gaps among patients in the KSA. Despite the knowledge and accessibility of effective drugs, there is low adherence to the recommended self-management practices. Conclusion: The review indicates a lack of local data in self-management practice gaps for patients with hypertension in KSA. There is a need to develop an education program to improve self-management practice among patients with HTN. This review could improve the form of drugs taken, decrease the severity of side effects, and create safer health care services.