Background: Despite the high number of researches on pancreatic adenocarcinoma (PAAD) over past decades, little progress had been made due to lack of effective treatment regimens. we aimed to investigate the expression level, mutation, and clinical significance of the Frizzled (FZD) family in PAAD so as to establish a sufficient scientific evidence for clinical decisions and risk management.Methods: PAAD samples were extracted from The Cancer Genome Atlas (TCGA). Oncomine, Gene expression profiling interactive analysis (GEPIA), Human Protein Atlas (HPA), Kaplan-Meier Plotter, cBioPortal, LinkedOmics, DAVID database, and R software (x64 3.6.2) were used to comprehensively analyze the roles of FZDs. p-value below to 0.05 was considered as significant difference.Results: In total, 179 PAAD tissues and 171 paracancerous tissues were included. The expression levels of FZD1, 2, 6, 7, and 8 were higher in PAAD tissues than those in normal pancreatic tissue. The higher the expression levels of FZD2 and FZD7, the higher the clinical stage. PAAD patients with high expression of FZD6 had shorter overall survival (OS) than those with low expression, indicating that FZD6 could be a potential prognostic and predictive marker in PAAD. PAAD patients with high expression of FZD8 had shorter recurrence free survival (RFS) than those with low expression, indicating that FZD8 could be a potential therapeutic target in PAAD. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis revealed that FZDs played a critical role in the Wnt signaling pathway, which was further confirmation that FZDs were transmembrane receptors of Wnt signaling pathway. Conclusions: Our results strongly indicated a crucial role of the FZD family in PAAD. FZD3, 4, 5, 6, and 9 could be potential prognostic and predictive markers, and FZD4 and 8 might function as potential therapeutic targets in PAAD.