Background <p>Veterinary epidemiology studies of the Miniature Schnauzer have revealed high prevalence of several breed-associated diseases. However, owner-reported disease data has not been evaluated, particularly with respect to pancreatic diseases, for which this breed is considered predisposed. This study aimed to examine Miniature Schnauzer health from the owner perspective, and explore relationships between reported pancreatitis and other conditions.</p> Methods <p>An online survey open to UK-based owners of Miniature Schnauzers in 2023, including directed disease-specific questions and opportunity for free-text reporting. Analyses were performed using R, including multivariable logistic regression modelling.</p> Results <p>Responses from 4,786 owners were received, of which 2,910 contained sufficient data for analysis. The most prevalent diseases reported were categorised as “dermatological”, “mass-associated” and “allergic”. Pancreatitis was reported in 7.6% of dogs. A reported diagnosis of pancreatitis was also associated with increased odds of a diabetes mellitus diagnosis. Hyperlipidaemia was reported in 1% of all Miniature Schnauzers, increasing to 3.3% of dogs over the age of 9 years.</p> Conclusions <p>This study identifies a high owner-reported prevalence of pancreatitis in UK Miniature Schnauzers, differing from previous veterinary epidemiological studies. The findings highlight the value of incorporating owner-reported data into breed health research and underscores the importance of effective communication between clinician and owner.</p>