Randall Christensen was an American costume designer.

The South Carolinian was best known for his transformative dance costumes as seen on the television series Dancing with the Stars. He designed costumes on the show for 11 seasons, winning the Emmy for Outstanding Costumes for a Variety or Music Program his first time out in 2006.

In addition to his television work, Christensen's gowns were worn by Vanessa Williams in the film Dance with Me (1998), Jennifer Lopez in Shall We Dance (2004), Mary Steenburgen in Marilyn Hotchkiss' Ballroom Dancing & Charm School (2005), and in Take the Lead (2006) starring Antonio Banderas.

Christensen died June 16th, 2019, in Los Angeles, California. He was 60.