Delaney is a unisex given name of Irish origin, derived from Ó'Dálaigh, which means "descendant of Dálach". In early Irish records, it was typically found as a male name, but today it is predominantly used as a female name in the United States and some other English-speaking countries.
The name Delaney has seen varied popularity over the years, with peaks and valleys in its usage. The highest number of births recorded in a single year was 32, in 1999. Conversely, there were only 5 births in several years, most recently in 2014 and 2022. Overall, there have been a total of 1193 births with the name Delaney since 1912.