Pregnancy is a special state for women, which associated with a myriad of emotional and physiological changes in different parts of the body including oral cavity and dental health. These changes predispose women to dental caries and gingivitis. The objectives of the study were to assess the level of knowledge on oral health among pregnant women and to associate the levels of knowledge on oral health among pregnant women with the selected demographic variables. A quantitative study was chosen to assess the level of knowledge on oral health among pregnant women. 100 mothers who met the inclusion criteria were selected by using non probability convenience sampling technique. The demographic variables were collected with self-administered questionnaire method and the level of knowledge on oral health was assessed by structured questionnaire. The result shows that out of 100 samples 10% members had inadequate knowledge, 56% members had moderate knowledge and 34% had adequate knowledge and there is no significant difference in level of knowledge with the selected demographical variables. The results of the study clearly reflected that the awareness levels among the pregnant women regarding this association were low. Hence, more collective efforts are required from dental and medical professionals to improve the oral and periodontal health outcomes during pregnancy.