ObjectiveTo assess the readability of patient‐facing educational information about the most common otolaryngology diagnoses on popular social media platforms.Study DesignCross‐sectional study.SettingSocial media platforms.MethodsThe top 5 otolaryngologic diagnoses were identified from the National Ambulatory Medical Care Survey Database. Facebook, Twitter, TikTok, and Instagram were searched using these terms, and the top 25 patient‐facing posts from unique accounts for each search term and poster type (otolaryngologist, other medical professional, layperson) were identified. Captions, text, and audio from images and video, and linked articles were extracted. The readability of each post element was calculated with multiple readability formulae. Readability was summarized and was compared between poster types, platforms, and search terms via Kruskal‐Wallis testing.ResultsMedian readability, by grade level, by grade level, was greater than 10 for captions, 5 for image‐associated text, and 9 for linked articles. Captions and images in posts by laypeople were significantly more readable than captions by otolaryngologists or other medical professionals, but there was no difference for linked articles. All post components were more readable in posts about cerumen than those about other search terms.ConclusionsWhen examining the readability of posts on social media regarding the most common otolaryngology diagnoses, we found that many posts are less readable than recommended for patients, and found that posts by laypeople were significantly more readable than those by medical professionals. Medical professionals should work to make educational social media posts more readable to facilitate patient comprehension.