ObjectivesThe aims of this study were to determine owners’ perception of their cats’ quality of life (QoL), and whether there is a correlation with weight-loss variables, as well as to identify the main difficulties owners encounter during controlled weight loss in their obese cats.MethodsThe study was carried out as an e-questionnaire survey addressed to owners of cats starting a weight-loss programme. The e-questionnaire was provided at a single time point after the conclusion of the study (24 weeks).ResultsNineteen completed questionnaires were included. Eighteen cats had a lower weight at the end of the weight-loss period, two of which had successfully reached their target weight. Mean weight loss was 13.84% body weight at a rate of 0.53% weight loss/week. Although the perceived QoL was not correlated with weight-loss variables ( P >0.05), it increased over time, even in cats that did not reach their target weight, and was statistically correlated with increased activity ( r = 0.73; P <0.01), ...