In 2025, 613 US boys were named Collin, making it the 493rd most common boys’ name of the year, down 4 places from #489 in 2024. That is 18 fewer than the 631 boys named Collin in 2024. Its best rank for boys was #115, reached in 1996. That year also had the most boys given the name: 3,358. For comparison, it was #261 in 2015 and #1,010 in 1950.
Social Security card records list Collin in 118 years of the 146 from 1880 to 2025, starting in 1895 with 5 babies. In all, 81,962 US babies have been given the name, 0.6% of them girls and 99% boys. Its busiest decade was the 2000s, with 27,909 babies named Collin.
Over the 10 years from 2016 to 2025, 7,806 US boys were named Collin; the busiest of those years was 2016, with 1,203. In 2025 that was about 1 in 2,786 of the boys in SSA’s list for the year.
Among the states, Collin ranked highest in Maine in 2025, at #238 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Colleen (163,084 babies since 1880), Colin (134,151 babies since 1880), Cullen (16,703 babies since 1880) and Coleen (11,998 babies since 1880). Rarer spellings such as Cullan, Kollyn and Cullyn are summarised on this page.