Abstract: The invention relates to a method for diagnosing pancreatic cancer (PaCa) or the precursor diseases and/or concomitant diseases thereof, in particular pancreatic ductal adenocarcinoma (PDAC), pancreatic intraepithelial neoplasia (PanIN), pancreatic lesions, chronic pancreatitis (CP), including endocrine pancreatic tumors. In said method, the diagnosis is performed using selected biomarkers. The invention further relates to biomarker combinations suitable for carrying out said method, particularly for in vitro diagnosis.