Lung cancer is one of the leading causes of cancer related mortality worldwide. The brain, liver, adrenal glands, and bone are the most likely site of metastatic disease in patients with lung cancer. Gastrointestinal (GI) metastasis from primary lung cancer is very rare. Only few reports have been published and the majority of described metastatic sites involved the small instestine. In the present study, we report a case of lung cancer with colonic metastasis and also review the published literature of primary lung cancer with colonic metastasis