Purpose: This study has been carried out to investigate the analgesic effect of black cumin oil on individuals with knee pain. Method: The experimental group (n = 30) and control group (n = 30) have been randomly selected. The control group patients have continued their routine prescription. For the experimental group, black cumin oil has been applied by rubbing to their knees 3 times a week for 1 month. Findings: As a result of the study, the mean VAS values of the patients in the experimental group has changed to 7.50 ± 0.97 on the 1st day and 6.30 ± 1.14 on the 30th day and there has been a significant decrease in pain severity in this group (p < 0.001). Results: This study has shown that the pain relieving properties of black cumin oil is effective on geriatric individuals living with knee pain.