In 2025, 84 US boys were named Coby, making it the 1,874th most common boys’ name of the year, down 299 places from #1,575 in 2024. That is 26 fewer than the 110 boys named Coby in 2024. Its best rank for boys was #462, reached in 2001. That year also had the most boys given the name: 516. For comparison, it was #1,383 in 2015 and #3,080 in 1950.
Social Security card records list Coby in 81 years of the 146 from 1880 to 2025, starting in 1941 with 7 babies. In all, 9,865 US babies have been given the name, 3.9% of them girls and 96% boys. Its busiest decade was the 2000s, with 3,289 babies named Coby.
Over the 10 years from 2016 to 2025, 1,173 US boys were named Coby; the busiest of those years was 2019, with 137. In 2025 that was about 1 in 20,334 of the boys in SSA’s list for the year.
Among the states, Coby ranked highest in Colorado in 2025, at #781 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Koby (6,135 babies since 1880) and Kobi (3,118 babies since 1880). Rarer spellings such as Cobi, Cobie and Cobey are summarised on this page.