In this study, bibliometric analysis of postgraduate theses which are published in the field of “thermal tourism” in database of Higher Education Institution National Thesis Center (YÖKTEZ) was performed. For this purpose, a total of 76 postgraduate theses, 65 master theses and 11 doctoral dissertation which were published related to thermal tourism between 1988-2018, were included in the scope of the study. These theses were reviewed according to “the year completion”, “university”, “institute”, “departments”, “used keywords”, “research methods”, “data collection techniques”, “sample group” and “research subjects” criteria. This information related to postgraduate theses were loaded to SPSS program to make frequency and percentage analyses of the data. According to research findings, it was determined that the number of master studies were more than the studies at doctorate level; and that the theses related to thermal tourism were most prepared within Afyon Kocatepe University. It was identified that most of the theses were particularly made under Business Management department; and that the topics towards management and organization discipline ranked first. When research methods of the theses are reviewed, it is observed that quantitative method and questionnaire technique were preferred the most; and that local tourists were the most included ones in sample groups.