In 2025, 1,954 US boys were named Peter, making it the 187th most common boys’ name of the year, up 5 places from #192 in 2024. That is 55 more than the 1,899 boys named Peter in 2024. Its best rank for boys was #31, reached in 1880. The most boys given the name in a single year was 11,603, in 1957. For comparison, it was #205 in 2015 and #37 in 1950.
Social Security card records list Peter in every one of the 146 years from 1880 to 2025; in 1880 there were 496 babies with the name. In all, 591,531 US babies have been given the name, 0.3% of them girls and 99.6% boys. Its busiest decade was the 1950s, with 102,931 babies named Peter.
Over the 10 years from 2016 to 2025, 18,290 US boys were named Peter; the busiest of those years was 2025, with 1,954. In 2025 that was about 1 in 874 of the boys in SSA’s list for the year.
Among the states, Peter ranked highest in District of Columbia in 2025, at #46 for boys there. It was in the top 100 in 4 states (counting DC). Related spellings in the SSA files include Pedro (94,582 babies since 1880) and Pierre (19,143 babies since 1880). Rarer spellings such as Pietro, Pieter and Piero are summarised on this page. The open nickname list we use links it to Pate and Pete.