Abraham E LaBonte shared a link. What's The Most Common Language In The World? There are over 7,000 languages in the world, but half the population only speaks one of 12 as their first language. So, what are the most common languages? 0 Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.