Brynleigh is a modern American name that joins Brynn, from the Welsh bryn, "hill", with the surname ending -leigh seen in Kayleigh and Everleigh. It is one of several spellings of the same name, next to Brynlee and Brinley. Brynleigh entered the US top 1000 in 2020, peaked at number 752 in 2022 and ranks number 807 in 2025.