RMS Ivernia was a British ocean liner built for the Cunard Line by C. S. Swan & Hunter of Wallsend, England, and launched in 1899. The Ivernia was one of Cunard's intermediate ships that catered to the vast immigrant trade between Europe and the United States of America in the early 20th century. She saw military service during World War I and was sunk by a torpedo from a German U-boat on New Year's Day 1917.
Ivernia was the first of three related liners of the Ivernia class. Saxonia was her larger sister ship, and was launched three months after her at John Brown & Company of Clydebank, leaving Ivernia the largest Cunard steamer during those months. Carpathia was a smaller half-sister of Ivernia and Saxonia, built at the same yard as Ivernia and launched in 1902, to a modified design based on her older half-sisters. Carpathia was made famous for her role in the aftermath of the sinking of the RMS Titanic in 1912.