The term stuttering refers to a speech fluency disorder, but also a complex syndrome in which speech disfluencies are only one of many characteristics. It often disturbs everyday communication situations and that is why it is such a suitable object of criticism and condemnation. The aim of this study is to investigate the attitudes of general population of the Republic of Croatia towards stuttering and people who stutter and to determine the existence of differences in attitudes considering certain sociodemographic characteristics of the respondents and considering the age of the person who stutters. A questionnaire created for the purposes of this research was used to evaluate attitudes on three components named Feelings, Beliefs and Knowledge. The research was conducted online and 472 respondents participated. The answers were marked on the Likert scale with points from 1 to 5. The collected data was processed by descriptive analysis and parametric tests in the IBM SPSS Statistics computer program. The obtained results determined the existence of more positive attitudes towards stuttering and people who stutter among younger groups of respondents, women, inhabitants od Istria, Littoral and Gorski Kotar and also Zagreb and its surroundings, respondents with a higher level of education and respondents who stutter or know the person who stutters. No differences in attitudes were found considering the career field of the respondents. Furthermore, more positive attitudes towards adults who stutter than towards children who stutter were found. The found differences should be accepted with caution due to the small number of respondents in some analyzed groups and occasionally established statistically significant but very small differences. Raising awareness of this disorder could lead to more positive attitudes towards stuttering and stronger social acceptance of people who stutter.