Allysa Seely (born January 4, 1989) is an American paratriathlete and gold medalist at the 2016 and 2020 Summer Paralympics.

She grew up in Glendale, Arizona and graduated from Mountain Ridge High School in 2007.

[2] In 2010 Seely was diagnosed with Chiari II malformation, basilar invagination, and Ehlers-Danlos syndrome.

[7] Seely competed at the 2020 Summer Paralympics where she defended her title and won her second gold medal in the paratriathlon.

[8] Seely competed at the 2024 Summer Paralympics where she won the bronze medal in the paratriathlon behind Hailey Danz and Veronica Yoko Plebani.