Jennifer Roma Seberry (also published as Jennifer Seberry Wallis; born 13 February 1944 in Sydney) is an Australian cryptographer, mathematician, and computer scientist, currently a professor at the University of Wollongong, Australia.

Her notable students have included Peter Eades, Mirka Miller, and Deborah Street.

Seberry has contributed to the knowledge and use of Hadamard matrices and bent functions for network security.

[5] She has published numerous papers on mathematics, cryptography, and computer and network security.

She led the team that produced the LOKI and LOKI97 block ciphers and the HAVAL cryptographic hash functions.