The study sought to find out the effectiveness of psychological interventions provided to rape survivors in selected post-rape care centres in Nairobi and Uasin-Gishu Counties in Kenya. The study was guided by the Crisis theory by Caplan. The study utilized a descriptive survey research design. The target population included rape survivors aged 10-45 years who had attended at least three psychological interventions while the key informants were the counsellors in these centres. Purposive sampling was used to obtain a sample of 44 rape survivors and 9 key informants from the two selected post-rape care centres. Consent forms were issued to the adult participants (18 years and above) to sign. The participants (aged 10-17years) were given assent forms after they were made to understand about the purpose of the research in the presence of their parents or guardians. The data was collected by use of structured questionnaires developed by the researcher. The researcher assisted the primary school children and illiterate participants using Kiswahili translation. The data collected was analysed using descriptive and inferential statistics. Most of the rape survivors were given individual counselling, group counselling, follow-up counselling and support group. Only 63.6% received legal services. The findings revealed that psychological interventions were generally effective. The combined perceived usefulness of psychological interventions was relatively high (M=3.3). There was also a significant reduction of combined mean of psychological effects (M= 3.7) before treatment compared to after treatment (M=1.5), and a statistical significant difference between the mean severity level of the psychological effects experienced before treatment (M =3.742, SD=1.2777) compared to after treatment (M=1.513, SD=0.4958). The study thus concluded that there was significant reduction of psychological effects after treatment. Based on the study findings and conclusion, it is recommended that, to improve the overall effectiveness of psychological interventions provided to rape survivors in post-rape-care centres, there should be a review of the interventions provided to ensure adequate provision especially of the legal services, follow-up and family counselling.