Purpose The study was conducted for the purpose of determining the relationship between internalized stigma and loneliness in patients with schizophrenia. Design and Methods The population of this correlational-descriptive study consisted of a total of 200 in patients with schizophrenia. The data were collected using "Form of Descriptive Characteristics", "Internalized Stigma of Mental Illness Inventory (ISMI)", and "UCLA Loneliness Scale". Findings It was determined that the loneliness level of the patients who participated in the study was 57.20 +/- 10.38 and level of of internalized stigma was 79.65 +/- 13.48. There was a statistically positive and strong correlation between loneliness and internalized stigma total mean scores of the patients (P = 0.001, r = 0.854). Practise Implications It was found that the schizophrenic patients had high levels of internalized stigma and loneliness.