In 2025, 5 US boys were named Chas, making it the 12,383rd most common boys’ name of the year. Its best rank for boys was #222, reached in 1880. The most boys given the name in a single year was 99, in 1915. For comparison, it was #9,743 in 2015 and unranked in 1950.
Social Security card records list Chas in 119 years of the 146 from 1880 to 2025, starting in 1880 with 53 babies. In all, 3,223 US babies have been given the name, 0.3% of them girls and 99.6% boys. Its busiest decade was the 1910s, with 581 babies named Chas.
Over the 10 years from 2016 to 2025, 20 US boys were named Chas; the busiest of those years was 2016, with 10. In 2025 that was about 1 in 341,615 of the boys in SSA’s list for the year.
Related spellings in the SSA files include Chaz (10,074 babies since 1880), Chase (184,958 babies since 1880), Chayse (3,169 babies since 1880) and Chaise (1,448 babies since 1880). Rarer spellings such as Khaos are summarised on this page.