Haidyn ranked #4693 among U.S. baby names in 2024. Since 1993, 2,872 babies have been named Haidyn, peaking in 2010 with 201 births. The 2010s were its biggest decade, with 1,403 births. Its use has been declining, down about 42% over the past five years. Haidyn is given to both girls and boys.