The study aimed to examine the moderator effect of organ transplant waiting time on hopelessness and death anxiety. The study was conducted in a descriptive and correlational design with 378 patients on the transplant waiting list (Agust 2021- March 2022). Multiple linear regression and PROCESS macro-Model 1 were used in the analyses. In this study, the STROBE checklist was followed. According to the results of the regression analysis, waiting for a transplant for 6–10 years reduced death anxiety by 9.38 times and waiting for a transplant for 16–20 years increased death anxiety by 31.3 times. The predictors in the regression analysis explained 33% of the model. The moderator effect constituted 6.4% of the explained part of the model, which was 25.4%; the R2 change was 3.4% and significant. We found that the longer the waiting period for organ transplant recipients, the higher the hopelessness and death anxiety.