As part of the book's promotion, Candlewick commissioned a song from the indie band Tally Hall and singer-songwriter Nellie McKay.

The song, called "Light & Night", was included as a download code with copies of the book purchased at Walmart stores.

A stage musical version by Nancy Harris and Marc Teitler made its debut at the Royal Shakespeare Company during their winter 2021 season.

It was reported in 2009 that Fox planned to adapt The Magician's Elephant into a film to be produced by Julia Pistor.

On the same day, Netflix also announced Noah Jupe, Benedict Wong, Pixie Davies, Sian Clifford, Brian Tyree Henry, Mandy Patinkin, Natasia Demetriou, Dawn French, Aasif Mandvi, Miranda Richardson, and Kirby Howell-Baptiste had joined the cast of the film.