Thyroid disorders, despite their prevalence and possible significant complications, remain considerably underdiagnosed. Thus, awareness of thyroid disorders symptoms and risk factors is needed. This study gauged the knowledge, attitudes, and practices (KAP) of Jordanians towards thyroid disorders, using an online survey. The survey assessed knowledge of thyroid function; knowledge of risk factors, symptoms, and treatments of thyroid disorder; and finally, attitudes and practices toward thyroid disorders. The survey was completed by 579 participants, predominantly female (62.9%) and married (68.7%), with a mean age of 41.4. Participants had a mean knowledge score of 7.22 out of 14.00. Specific gaps in knowledge relevant to women’s health were recognized, where a minority recognized symptoms such as menstrual abnormalities (38.2%), and risk factors such as pregnancy (19.3%). Additionally, a minority believed that thyroid medications should not be stopped during pregnancy (31.8%). Better knowledge correlated with perceiving thyroid disorders as common, dangerous, and preventable. Factors predicting higher knowledge included being female, pursuing medical studies, and having a prior thyroid disorder diagnosis. Most participants preferred visiting an endocrinologist (75.6%) over primary care (19.3%) for thyroid-related symptoms. In conclusion, the study recommends targeted public health campaigns to enhance awareness, particularly among women and expectant mothers. Disseminating accurate information through various channels, including primary care centers, is crucial for creating an informed and proactive population regarding thyroid health.