Introduction: Social media is defined as a type of interactive technology through which people can share their knowledge, opinions and health information, and interact with one another. Social media has accelerated the way people communicate with each other at any time, without limitations through quick messaging, face-to-face interaction, and effective communication. Aim: The current study aimed to investigate the impact of social media in the decision of choosing an orthodontist in Egypt and Bahrain. Material and methods: The present study was a cross sectional study conducted through an online questionnaire filled in by around 577 participants from Egypt and 562 from Bahrain. The study was carried out in the Faculty of Dentistry, Suez Canal University, after approval of research ethics committee number (415/2021). Results: more than half of participants were females of using social media. Both countries describe Instagram as their top choice among social media platforms. While Facebook was favored by the older groups in Egypt. In the Bahraini sample 75% preferred patient testimonials, 65% images of previous cases. On the other hand, the Egyptians preferred the images first (81%) followed by the patients' testimonials (75%). Both countries indicated that the orthodontists account activity and accounts posts would affect their selection decision. Also, they prefer of initial communication between orthodontists and patient via social media rather than in person. The effect of social media reviews displayed a primary influence on both countries. Conclusion: Social media has proven to have a powerful effect in Egypt and Kingdom of Bahrain.