Introduction: There is a high degree of perceived stigma among adults with inflammatory bowel disease (IBD), with up to 84% considering a social stereotype against them due to their condition. This may negatively impact their treatment adherence and quality of life, as well as practical issues such as gaining urgent access to public bathroom facilities. It has been demonstrated that higher public knowledge levels can reduce public stigma, yet little is known about the general level of understanding of IBD in the community. A study was performed to ascertain the public knowledge levels of IBD in Christchurch, New Zealand, using a validated assessment tool. Objectives: The aims of this study were to implement a validated knowledge survey (IBD-KID2) among members of the general public in Christchurch, New Zealand, and to assess the level of understanding about IBD. Methods: Recruitment took place at a Health Research and Education showcase event at the University of Otago (Christchurch), which is a free event open to members of the public. All people over the age of 8 years were invited to participate. Demographic information was collected and the disease-specific knowledge assessment survey IBD-KID2 completed by all participants consenting to the research. Results: One hundred people consented to the study, and the mean age 39.9 was years (SD 20, range 12–82 years). Of these 100 participants, 71 were female and 71 had a post-secondary education. Twelve participants had a family history of IBD. The mean IBD-KID2 score was 8.7 (SD 2.9), equal to a percentage total score of 58%. No independent variable was found to be significantly associated with IBD-KID2 scores. The frequency of correct answers showed knowledge deficiencies in the areas of nutrition, treatment, growth, and the cause of IBD. Conclusions: This study highlighted knowledge deficiencies among members of the general public in Christchurch, New Zealand. These topics may be addressed with awareness campaigns in order to maximise community support for adults and children with IBD.