The present study on the prevalence of intestinal parasitic infection from October 2025 until the April 2026, was conducted among children aged (2 months to 18 years) years admitted Tikrit teaching hospital in Tikrit city were suffering from diarrhea and other gastrointestinal disorders. 872 specimen were choosen randomly and examined, A total of 350 parasite stool specimens from patients with gastrointestinal disorders and 307 (87.7%) samples from infected patients with protozoa and samples from infected patients with helminthes 43(12.29%) examined under a microscope. The collected samples were distributed total protozoa the major occurrence frequency was Giardia lambilia 134 (38.3%), followed by Entamoeba histolytica in a percentage of 97 (27.7%) and Cryptosporidium parvum in a percentage of 76 (21.7%) respectively. As well as, recorded as the percentage of total helminthes isolates in patients suffering from disorders and diseases of the digestive system showed Ascaris lumbricoides a percentage 34 (9.7%) isolated from the stool sample, While Enterobius vermicularis recorded in 9 (2.5%) in patients with gastrointestinal disorders. The gender group with the highest average range of the Male patient group with intestinal parasite infected 187 (40.2%). Additionally, the distribution of participants across gender group is displayed in the same table, which also showed Female patient group with intestinal parasite infected 163 (40.0%). Conclusion: These findings highlight the substantial burden of IPIs among Tikrit city preschool and school-aged children, with Giardia lambilia infection was major occurrence frequency associated with intestinal disorder. As well as Protozoa and Helminthes infection were increased in 6-11 age groups and was high in male than female groups identified in this study.