In 2025, 5 US boys were named Arther, making it the 12,191st most common boys’ name of the year. Its best rank for boys was #375, reached in 1884. The most boys given the name in a single year was 132, in 1922. For comparison, it was unranked (under five boys) in 2015 and #1,123 in 1950.
Social Security card records list Arther in 117 years of the 146 from 1880 to 2025, starting in 1880 with 17 babies. In all, 5,040 US babies have been given the name, 0.9% of them girls and 99% boys. Its busiest decade was the 1920s, with 1,193 babies named Arther.
Over the 10 years from 2016 to 2025, 20 US boys were named Arther; the busiest of those years was 2025, with 5. 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 Arthur (551,930 babies since 1880).