Abstract Background Functional gastrointestinal disorders (FGIDs) are common in children worldwide. Multiple FGIDs might share some etiopathogenesis, which makes finding multiple disorders in a child a possibility. Aims Estimate the prevalence of FGIDs in Jordanian children prospectively, whether as a single or combined disorders. Methods A prospective, cross-sectional study was conducted in 6 cities in Jordan. Children between the ages of 4–18 were recruited. A validated Arabic language questionnaires based on Rome III criteria were filled by the participants if older than 10 years and by the parents if younger than 10 years. Results A total of 1587(79.35%) participants filled the questionnaires. 814 (51.29%) were younger than 10 years. FGIDs was diagnosed in 204 (25.03%) of younger children. In children between (11 and 18), 310 (40%) were diagnosed with FGIDs. In children (4–10 yrs.) who were diagnosed with FGIDs, 15.5 % had two disorders, while 3% had three or more disorders. The most common combination was aerophobia and functional constipation, comprising 22.58% of combined disorders. In children (11–18 yrs.) with FGIDs, 22.27% had two disorders and 7% had three or more disorders. Interestingly, the most common combination was aerophagia and functional constipation also, representing 34% of the combined cases. Conclusions Functional gastrointestinal disorders are common in Jordanian children. Multiple Functional gastrointestinal disorders may coexist. Diagnosis of one disorder should not prevent us from investigating other disorders. Funding Agencies None