On June 19, 2014, local news source Dispatch reported that Baekhyun and Girls' Generation's Taeyeon were dating, which was later confirmed by SM Entertainment. On September 15, 2015, it was reported the two had broken up due to their busy schedules. SM Entertainment had yet to comment on the matter.
On April 2, 2021, Baekhyun and SM Entertainment confirmed he will enlist on May 6 as a public service worker. He got the military exemption because he has been managing hypothyroidism since high school. He is set to be discharged on February 5, 2023.