In 2025, 433 US boys were named Lochlan, making it the 644th most common boys’ name of the year, up 133 places from #777 in 2024. That is 110 more than the 323 boys named Lochlan in 2024. Its best rank for boys was #644, reached in this year, 2025. That year also had the most boys given the name: 433. For comparison, it was #843 in 2015 and unranked in 1950.
Social Security card records list Lochlan in 28 years of the 146 from 1880 to 2025, starting in 1998 with 8 babies. In all, 4,970 US babies have been given the name, 2.5% of them girls and 98% boys. Its busiest decade was the 2010s, with 2,469 babies named Lochlan.
Over the 10 years from 2016 to 2025, 3,363 US boys were named Lochlan; the busiest of those years was 2025, with 433. In 2025 that was about 1 in 3,945 of the boys in SSA’s list for the year.
Among the states, Lochlan ranked highest in New Hampshire in 2025, at #257 for boys there. It was not in the top 100 of any state. Rarer spellings such as Lochlyn, Lochlann and Lochlin are summarised on this page.