In 2025, 1,284 US boys were named Cyrus, making it the 268th most common boys’ name of the year, down 15 places from #253 in 2024. That is 105 fewer than the 1,389 boys named Cyrus in 2024. Its best rank for boys was #216, reached in 1880. The most boys given the name in a single year was 1,389, in 2024. For comparison, it was #469 in 2015 and #768 in 1950.
Social Security card records list Cyrus in every one of the 146 years from 1880 to 2025; in 1880 there were 54 babies with the name. In all, 29,286 US babies have been given the name, 0.3% of them girls and 99.7% boys. Its busiest decade was the 2020s, with 6,680 babies named Cyrus.
Over the 10 years from 2016 to 2025, 9,657 US boys were named Cyrus; the busiest of those years was 2024, with 1,389. In 2025 that was about 1 in 1,330 of the boys in SSA’s list for the year.
Among the states, Cyrus ranked highest in Hawaii in 2025, at #72 for boys there. It was in the top 100 in 1 state (counting DC). Related spellings in the SSA files include Syrus (2,079 babies since 1880). Rarer spellings such as Syris, Sirus and Cyris are summarised on this page. The open nickname list we use links it to Cy.