In 2025, 10 US girls were named Sindy, making it the 10,012th most common girls’ name of the year, down 534 places from #9,478 in 2024. That is 1 fewer than the 11 girls named Sindy in 2024. Its best rank for girls was #1,166, reached in 1957. The most girls given the name in a single year was 88, in 1979. For comparison, it was #6,209 in 2015 and #3,927 in 1950.
Social Security card records list Sindy in 79 years of the 146 from 1880 to 2025, starting in 1921 with 6 babies. In all, 2,773 US babies have been given the name, all of them girls. Its busiest decade was the 2000s, with 535 babies named Sindy.
Over the 10 years from 2016 to 2025, 116 US girls were named Sindy; the busiest of those years was 2022, with 17. In 2025 that was about 1 in 160,727 of the girls in SSA’s list for the year.
Related spellings in the SSA files include Cindy (258,065 babies since 1880), Cyndi (3,568 babies since 1880), Cindi (7,696 babies since 1880) and Cyndy (1,395 babies since 1880). Rarer spellings such as Syndey and Sindee are summarised on this page.