Mervin appears in U.S. registration data going all the way back to 1880, when records begin. Its popularity climbed over the following decades. In 1920, 249 babies received the name (ranked #377). Today it sits well outside the top 1,000 (around #2609), with roughly 50 babies named Mervin each year. Mervin's usage has held roughly steady recently. In total, around 12,297 babies have been registered with this name since 1880.