Rett first appears in the U.S. registration record in 1958. Its popularity climbed over the following decades. In 2013, 8 babies received the name (ranked #9471). Today it sits well outside the top 1,000 (around #12581), with roughly 6 babies named Rett each year. Rett's usage has held roughly steady recently. In total, around 142 babies have been registered with this name since 1880.