Background and Aim: Ranking of hospital libraries based on standard criteria and taking pattern of top libraries would improve the quality of library services. The purpose of this study was to rate hospital libraries based on LibQual criteria and Vikor model. 
Materials and Methods: This study was conducted in a survey method. The statistical population was 3850 actual users of the library of 8 governmental hospitals (with capacities up to 320 beds) in Tehran in 2016. To achieve the goals, The LibQual questionnaire and AHP technique were used. The validity of both questionnaires has been confirmed in various studies. Cronbach's alpha coefficient greater than 70 percent For LibQual questionnaire and inconsistency rates less than one percent for Vikor questionnaire confirm the reliabilities. Data analysis was performed using the expert choice software. Ranking were done using the Vikor technique.
Results: According to three main dimensions for LibQual, "library as a place" weighing 0.379 was the first preference, and "quiet space for individual activities" weighing 0.364 was the first in this dimension too. The dimension of "information control" weighs in 0.318 at the second, and "service impact" weighs 0.303 was in the third grade. In the ranking based on the Vikor criteria, the Library of Firoozgar hospital was in the first place.
Conclusion: The library of Firoozgar hospital in Iran university of medical sciences was the forefront and could be an exemplar for the other libraries.