Introduction: Cardiac patients frequently experience elevated levels of anxiety, which may influence clinical outcomes. Perceived social support is a precious resource with which to minimise anxiety. The aim of the study was to explore levels of perceived social support, levels of anxiety (state and trait), and the associated factors as well as the impact of patents' characteristics and social support on anxiety. Material and methods: The study sample consisted of 82 island inhabitant patients with cardiac problems (49 men and 33 women). Data collected by the completion of the State-trait anxiety inventory (STAI) and the Multidimensional scale of perceived social support questionnaire (MSPSS). The statistical significance level was set at p < 0.05. Results: Regarding state and trait anxiety, half of the patients scored below 37 and 38, respectively, (medians) while 25% of participants scored more than 50 and 48, respectively. These values indicate moderate levels of anxiety. Regarding social support, at least 50% of patients scored over 27, 27, and 20 (median) on support from significant ones, family, and friends, respectively. In addition, 25% of patients scored above 28, 28, and 26, respectively. These values indicate high levels of social support. The association between anxiety and social support was found to be linearly negative, meaning that the more support a patient felt, the less anxiety they also experienced. Conclusions: Enhancing perceived social support may be a key-element in alleviating anxiety among cardiac patients.