Ollin first appears in the U.S. registration record in 1919. Its popularity climbed over the following decades. In 2022, 17 babies received the name (ranked #5575). Today it sits well outside the top 1,000 (around #7142), with roughly 12 babies named Ollin each year. Ollin's usage has held roughly steady recently. In total, around 301 babies have been registered with this name since 1880.