The NCCN developed clinical practice guidelines for oncology that set the standard of cancer care in the United States. Because of wide acceptance of, need for, and interest in standardized treatment practices across the world, NCCN launched initiatives to help international groups adapt these guidelines. This article describes the initiative in the Middle East and North Africa (MENA) region. A group of oncology experts and key opinion leaders were assembled into 7 specific committees to develop treatment guidelines for breast cancer, lung cancer, colon cancer, prostate cancer, hepatobiliary cancer, lymphoma, and palliative care. The committees reviewed the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) to identify any modifications required for them to be more applicable to the MENA region based on available evidence and regional experience. These modifications were discussed with NCCN experts and summarized for each specific area. The development of these guidelines generated a strong interest in the region to develop more evidence-based practice and create further networking and collaboration.