Adrenal glands can host metastases from various malignancies. While surgical resection offers potential benefits in solitary- or oligometastatic cases, many patients have systemic disease unsuitable for surgery when adrenal metastases are diagnosed. Most adrenal metastases originate from malignancies in the lungs, kidneys, or liver. This review explores diagnostic and treatment strategies for adrenal metastases including data from a single center. In particular, it is shown that surgical resection of metastases from colorectal cancer to the adrenals may offer a potential survival benefit. Personalized treatment plans and further research are critical for improving outcomes for patients with adrenal metastases.