James Ryan Marshall is a former New Zealand rugby union player. He played in the First five-eighth, Fullback and occasionally Second five-eighth positions for the Hurricanes in Super Rugby and Tasman in the Bunnings NPC. He also captained the Taranaki Bulls in the ITM Cup. He is the older brother of Crusader Tom Marshall. He announced his retirement on his What a Lad Podcast in January 2021 due to an ongoing injury to his hip. He is currently the assistant coach for the Crusaders.

The Crusaders are a New Zealand professional rugby union team based in Christchurch, who compete in the Super Rugby competition. They are the most successful team in the competition's history and have won a total of 14 titles, as well as two regionalised Super Rugby titles in 2020 and 2021.