This study was carried out to find out whether there is any difference among mean scores of optimisms for HIV/AIDS patients of different age groups. The sample consisted of 150 HIV/AIDS patients was collected from the department of medicine, Jawahar Lal Nehru Medical College & Hospital, Aligarh Muslim University, Aligarh, Uttar Pradesh. The Life Orientation Test-Revised (LOT-R) was used. The data was analyzed by using one-way ANOVA. The results showed that there was found no significant difference among people of different age groups living with HIV/AIDS on optimism.