Pregnancy in a woman's life is associated with many physiological changes in the body due to alterations in the hormone levels. The incidence of oral diseases in general and periodontal diseases in particular are higher in pregnant women. Evidence exist that poor oral health can lead to adverse pregnancy outcomes. Aim & Objective: To evaluate the knowledge, awareness and perception regarding the link between oral hygiene and adverse pregnancy outcome among female population of Greater Noida district. Materials and Method: The survey was based on a sample size of 1000 adult women between age group 21-55. A pretested close ended questionnaire was distributed among female patients consisting of 12 questions to assess their knowledge, awareness and perception regarding the link between oral hygiene and adverse pregnancy outcome. Results: The awareness regarding oral health and association with adverse pregnancy outcomes among the study population was very low. Conclusion: Women need more information about oral health and disease prevention, Hence more collective efforts are required from dental and medical professional to improve the oral and periodontal health outcomes during pregnancy.