Jason Isaac Fuchs (born March 5, 1986) is an American actor and screenwriter, best known for writing Ice Age: Continental Drift (2012), Pan (2015), and Argylle (2024). He is also known for playing Lawrence Grey on the Fox dramatic thriller The Passage. In January 2015, Fuchs was included on the Forbes 30 Under 30 list.

As a writer, his films have grossed over $1.9 billion worldwide, making him one of the 100 highest-grossing screenwriters of all time and one of only two writers under age 40 on that list.