Malachy entered U.S. records in 1897, near the turn of the 20th century. Its popularity climbed over the following decades. In 2002, 35 babies received the name (ranked #2732). Today it sits well outside the top 1,000 (around #5609), with roughly 17 babies named Malachy each year. Malachy's usage has held roughly steady recently. In total, around 681 babies have been registered with this name since 1880.