In 2025, 965 US boys were named Cairo, making it the 341st most common boys’ name of the year, up 13 places from #354 in 2024. That is 16 more than the 949 boys named Cairo in 2024. Its best rank for boys was #306, reached in 2022. That year also had the most boys given the name: 1,101. For comparison, it was #942 in 2015 and unranked in 1950.
Social Security card records list Cairo in 40 years of the 146 from 1880 to 2025, starting in 1979 with 6 babies. In all, 9,999 US babies have been given the name, 5.8% of them girls and 94% boys. Its busiest decade was the 2020s, with 6,261 babies named Cairo.
Over the 10 years from 2016 to 2025, 8,153 US boys were named Cairo; the busiest of those years was 2022, with 1,101. In 2025 that was about 1 in 1,770 of the boys in SSA’s list for the year.
Among the states, Cairo ranked highest in District of Columbia in 2025, at #84 for boys there. It was in the top 100 in 1 state (counting DC). Related spellings in the SSA files include Kairo (11,519 babies since 1880).