Kate Horne (born August 23, 1954 in Revelstoke, British Columbia, Canada) is a Canadian curler.
She is a and .
Kate Horne married with Canadian curler and coach Darryl Horne, who coached Cathy Borst team to bronze at the 1998 World Women's Curling Championship and Alberta's Heather Nedohin team to bronze at the 2012 World Women's Curling Championship. She is the past winner of the B.C. Nisei bonspiel, for curlers of Japanese descent.