Cerebral palsy is a leading cause of physical impairment worldwide. Community support and acceptance influence the opportunities people with cerebral palsy have to participate in all areas of life, but very little is known about the general community's understanding of cerebral palsy. This study investigated knowledge and perceptions of cerebral palsy in the Australian community. A sample of 1,217 adults responded to an open-ended question: 'What is the first thing that comes to mind when you think about cerebral palsy?' Almost half of the sample indicated some awareness that cerebral palsy is a physical disability involving difficulties with muscle control, movement and coordination; however, 20% of the participants had no knowledge or stated incorrect facts. Wheelchairs were the first thing that came to mind for 10% of the sample. Few participants mentioned common comorbidities such as cognitive or communication difficulties. A substantial minority of responses (8%) were characterised by stigma or insensitivity. Although many people in the general community appear to have accurate knowledge about cerebral palsy, misperceptions and stereotypes are likely to impact on quality of life and personal well-being for individuals with cerebral palsy and their families.