This study aims to test the effectiveness of gratitude therapy to increase happiness in women victims of violence who live in Panti Sosial Perlindungan Bhakti Kasih. This type of research uses one group pretest-posttest experiment. The hypothesis of this study is that gratitude therapy is effective for increasing happiness scores in women victims of violence. The results of this study indicate that gratitude therapy is effective in increasing the happiness score of the participants, with a significance level of 0.018 (? <0.05), which means that there are differences in happiness scores before and after being given the intervention in the form of gratitude therapy.