As part of its ongoing efforts to enhance students' scientific knowledge and practical competencies, the Department of Biochemistry at the College of Science, Al-Mustaqbal University, organized a scientific seminar entitled “Practical Applications of Enzymes in Laboratory Diagnosis,” delivered by Asst. Lecturer Hannadi Tahseen Muslim. The seminar highlighted the biological significance of enzymes and their essential role in laboratory investigations and the diagnosis of various medical conditions. It discussed the importance of measuring enzyme activity in clinical samples as a valuable diagnostic indicator for evaluating organ function and identifying biochemical changes associated with different diseases. The presentation covered the diagnostic applications of several clinically important enzymes, including liver, cardiac, and pancreatic enzymes, explaining the significance of changes in their activity levels in blood samples and their association with specific pathological conditions. It also addressed the laboratory principles involved in enzyme activity determination, emphasizing the importance of accurate sample handling, appropriate analytical procedures, and reliable interpretation of laboratory results. Furthermore, the seminar demonstrated how enzyme-based investigations contribute to supporting clinical decisions, monitoring disease progression, and evaluating patients' responses to treatment. It provided students with an opportunity to connect their theoretical understanding of enzymology with its practical applications in clinical laboratories and modern medical diagnostics. This scientific activity contributes to improving students' academic and professional competencies and supports Sustainable Development Goal 3: Good Health and Well-being, by highlighting the importance of laboratory diagnosis, early disease detection, and the role of biochemical investigations in improving healthcare services. Al-Mustaqbal University – The First University in Iraq