Paul Augustine Leyden (born 16 December 1972) is an Australian actor, producer and screenwriter. He is best known for playing the role of Simon Frasier on the daytime soap opera As the World Turns. He played Simon in the 2009 mini series "Maneater". He also had a brief stint on The Young and the Restless as "Blake".

Leyden was born and raised in Melbourne by his parents, John and Ros Leyden. He is one of five children. The actor starred in the mini-series Tribe, and can be seen in episodes of Farscape, BeastMaster, Law & Order: Special Victims Unit and Home and Away.

Leyden's hobbies include playing outdoor sports, the saxophone, and guitar. He resides in Los Angeles.