Alaina Kalanj is a Canadian film and television actress, also known professionally as Alaina Huffman. She is known for the Canadian television series Painkiller Jane, where she played the character Maureen Bowers.

She also played Dinah Lance/Black Canary on Smallville, as well as 1st Lt. Tamara Johansen in Stargate Universe, where she was a regular cast member. She played Abaddon in Supernatural.