Autism is a neurodevelopmental disorder characterized by difficulties in social situations, speech processing, executive functioning and sensory difficulties. It appears in the first three years of life and is present throughout life. It affects many developmental areas that are affected differently, so each person with autism is approached individually. Awareness about people with autism is still not fully developed. Although scientists have long known what autism roughly means, autism is rarely discussed in public, and when it is, it is mostly untested assumptions that hinder understanding of autism. Precisely for this reason, the goal of this research was to examine the general population's awareness of autism in the Republic of Croatia. For the purposes of this research, a survey questionnaire was prepared and conducted online. The collected data were processed and presented graphically and tabularly. The research results proved that the research participants understand the symptoms of autism.