Federal holiday in the United States Memorial Day is a federal holiday in the United States for mourning the U.S. military personnel who died while serving in the U.S. Armed Forces. It is observed on the last Monday of May. 235,573 views on May 25, 2026 — Wikipedia's most-read article that day. Also most read: Obsession (2025 film), Euphoria (American TV series), Kyle Busch, Double or Nothing (2026). Wiki link