A bibliometric analysis is conducted in order to assess the quantitative and qualitative changes in a given scientific research topic. It can provides useful information for future study. The present paper is an attempt to documenting, examining and assessing the existing literature about service quality (SQ) in tourism and hospitality. Actually, it’s a trying to identifying the most favorable tourism sectors and leading journals for service quality researchers, the most influential publications, the most researched keywords in tourism SQ literature, and as well as finding out the most common measurement tools. The methodology adopted was based on the bibliometric and visualization. 282 papers related to service quality which are published from 1979 to 2016 in the Web of Science database, form the research samples. In order to analyzing and reporting the results, various tools were applied, namely: Endnote, Excel, Vosviewer, Wordle and Zotero. The results of study show that: airline and accommodation are main sectors in tourism that the most of researchers have focused on them. Journal of Air Transport Management is the leading journal for publishing SQ related papers. The dominant keywords and concepts in SQ literature are satisfaction, perception, expectation and loyalty and paper of Tsaur, Chang and Yen with this title “The evaluation of airline service quality by fuzzy MCDM” is the most influential publications. SERVQUAL and fuzzy are the main measurement tools that have been applied by researchers to studying the service quality
