OBJECTIVES: The aim of this study was to check prevalence of Gingivitis among patients attended dental department of Sandman Provisional hospital Quetta, Pakistan. METHODS: The retrospective based descriptive study was done and data was collected from patients records for the period of 16 months i.e.: January 2015 to April 2016. The record of patients attended dental department of hospital having any dental disease were included in study. To study population descriptive and cross tabulation were performed and data in this study was analyzed using IBM SPSS v.20. RESULTS: Three thousand four hundred six (3406) patient’s record data were analyzed during the study period, majority (n=1159, 34.9%), of respondents had age ranges between 17 – 26 years with male dominancy, (n= 1746, 51.3%). Results shows that overall prevalence of Gingivitis was 89.6% (n=3052) among all the dental diseases recorded for the patients. Age group was significantly (P < 0.001) associated with the type of different diseases. CONCLUSIONS: The present study revealed that the Gingivitis was most prevalent disease in dental patients, it is recommended that conscious efforts should be taken including oral health awareness programs and seminars regarding oral health in city.