In 2025, 170 US boys were named Syncere, making it the 1,194th most common boys’ name of the year, down 133 places from #1,061 in 2024. That is 36 fewer than the 206 boys named Syncere in 2024. Its best rank for boys was #1,034, reached in 2020. The most boys given the name in a single year was 213, in 2022. For comparison, it was #1,460 in 2015 and unranked in 1950.
In 2025, 22 US girls were named Syncere, making it the 5,698th most common girls’ name of the year, down 1,946 places from #3,752 in 2024. That is 19 fewer than the 41 girls named Syncere in 2024. Its best rank for girls was #3,752, reached in 2024. That year also had the most girls given the name: 41. For comparison, it was #4,972 in 2015 and unranked in 1950.
Social Security card records list Syncere in 27 years of the 146 from 1880 to 2025, starting in 1999 with 40 babies. In all, 3,808 US babies have been given the name, 18% of them girls and 82% boys. Its busiest decade was the 2010s, with 1,464 babies named Syncere.
Over the 10 years from 2016 to 2025, 1,726 US boys were named Syncere; the busiest of those years was 2022, with 213. In 2025 that was about 1 in 10,048 of the boys in SSA’s list for the year.
Among the states, Syncere ranked highest in Georgia in 2025, at #588 for boys there. It was not in the top 100 of any state. Related spellings in the SSA files include Sincere (11,567 babies since 1880). Rarer spellings such as Synceer, Cynsere and Synceir are summarised on this page.