Blythe Hartley (born May 2, 1982) is a Canadian Olympic diver.

She went to the National Sport School in Calgary, Alberta with many other top Canadian athletes.

Hartley won her first gold medal at the world aquatic championships in the 1 m springboard in Fukuoka, Japan in 2001, and won a bronze at the 2003 World Aquatics Championships in 3 m springboard in Barcelona, Spain.

Hartley also won a gold medal at the 2005 World Aquatics Championships in Montreal in the springboard event.

The North Vancouver resident concluded her competitive career at the 2008 Beijing Olympics, where she placed fourth in the three-metre springboard.