John Shipton is an anti-war activist and architect in Sydney, Australia, and the father of Julian Assange. He founded the WikiLeaks Party and was involved in the creation of WikiLeaks and helped with WikiLeaks for years. He was criticised for meeting with President Bashar al-Assad during a trip to Syria as part of the WikiLeaks Party.

He campaigns and acts as an ambassador for Assange and was featured in the documentary Ithaka, produced by his son Gabriel Shipton.