Background: Echocardiography is often the imaging modality of choice in hypertensive patients with diastolic dysfunction. Diastolic dysfunction may be exacerbated during exercise, especially if there is a marked increase in SBP. Doppler echocardiography has become the standard method for identifying and characterizing diastolic function. The management of diastolic dysfunction is audited, examining the relationship between symptom duration, use of pre-operative radiological imaging, and patient outcome. Objective: To determine the frequency of diastolic dysfunction in hypertensive patients by echocardiography. Methodology: Echocardiograph was done by a single operator using the (Toshiba power vision ® echocardiography) machine in Punjab Institute of Cardiology (PIC), Lahore Pakistan. The duration of the study was from July to October. A total of 48 patients were examined through a convenient sampling technique. Statistical software for social sciences (SPSS version 22.0) is used for the analysis of data. Results: A total of 48 patients were examined in the study. According to table 1, the mean age of the patients was 56.8. The minimum age was 40 and the maximum age was 80. The standard deviation was 10.14. According to table 2, 19(39.6) patients were females, and 29(60.4) patients were males. According to the table 3, 26(54.2) patients had diastolic dysfunction, and 22(45.8) did not have diastolic dysfunction. According to table 4, Out of 26 patients who were suffering from diastolic dysfunction, 14(29.2) patients had Grade 1 type diastolic dysfunction, and 12(29.0) had Grade 2 type of diastolic dysfunction. Conclusion: Diastolic dysfunction should be considered in the patient presenting with heart failure symptoms but with normal systolic function, particularly in hypertensive patients with left ventricular hypertrophy.