Objectives: The aim of the study was to make the adaptation of the Functional Health Literacy in Turkish Adults (TOFHLA) in patients withcardiovascular disease.Materials and Methods: Data collection form consisted of questions on socio-demographic-health related characteristics (31 items), verbal (30items) and numeral (15 items) parts of TOFHLA. Computation was made out of 50. Data collection form was applied to the cardiology outpatientclinic applicants with face to face interview technique by the researcher (EU).Results: The mean verbal and numerical competency scores were 41.67 and 43.33, respectively. The correlation coefficient between the verbal andnumerical competency scores was r=0.48 (p0.05, age and numeral score r=-0.02, p>0.05, age and total score r=-0.01, p>0.05. Statistically significant differenceswere found between verbal, numeral and total scores of the education groups. It was found that the scores increased in parallel with the increasededucational degree. Nuclear families had the highest scores.Conclusion: In terms of public health, to design and implement studies on a national scale in a broad context and to study the factors affecting thehealth literacy levels of different segments of society seem important.