Fewer than five US boys were named Terrill in 2025, so it does not appear in that year’s SSA list for boys. Its best rank for boys was #711, reached in 1948. The most boys given the name in a single year was 122, in 1975. For comparison, it was #6,284 in 2015 and #796 in 1950.
Fewer than five US girls were named Terrill in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #1,375, reached in 1947. That year also had the most girls given the name: 46. For comparison, it was unranked (under five girls) in 2015 and #1,472 in 1950.
Social Security card records list Terrill in 101 years of the 146 from 1880 to 2025, starting in 1917 with 5 babies. In all, 5,079 US babies have been given the name, 14% of them girls and 86% boys. Its busiest decade was the 1970s, with 1,065 babies named Terrill.
Over the 10 years from 2016 to 2025, 100 US boys were named Terrill; the busiest of those years was 2020, with 20.
Related spellings in the SSA files include Terrell (38,087 babies since 1880), Terrel (3,042 babies since 1880) and Terell (2,733 babies since 1880).