Dane Laffrey is an American scenic designer best known for Broadway shows Maybe Happy Ending (2024), Parade (2023), Charles Dickens' A Christmas Carol (2022), Once on This Island (2017), Spring Awakening (2015), and Fool for Love (2015), and Off-Broadway shows The Christians (2015), Cloud Nine (2015), and Rancho Viejo (2016). In 2025, Laffrey won his first Tony Award for Best Scenic Design of a Musical for Maybe Happy Ending after two previous nominations for A Christmas Carol and Once on this Island.

Laffrey was born in Michigan. He attended boarding school at Interlochen Arts Academy for his junior and senior years of high school. During high school, Laffrey formed a friendship with Michael Arden and their longtime creative collaboration was born. In 2002, he relocated to Sydney, Australia to study design at the National Institute of Dramatic Art. He graduated in 2004.

Laffrey first served as scenic designer and costume designer on Darlinghurst Theatre Company's production of Some Explicit Polaroids and Griffin Theatre Company's production of The Cold Child in 2006 in Sydney, Australia. He was nominated for a Sydney Theatre Award for Best Set Design for Some Explicit Polaroids that same year. The following year, he again served in both roles for the production of The Colour of Panic at Sydney Opera House in Sydney, Australia and Det Apne Teater in Oslo, Norway.

In 2007, he relocated to New York City where he began designing sets, costumes, and one time-lighting for multiple Off-Broadway, Off-Off-Broadway, and regional productions. Notable Off-Broadway productions include Lucas Hnath's The Christians, Dan LeFranc's Rancho Viejo, and Caryl Churchill's Cloud Nine. He was nominated for four American Theatre Wing Hewes Design Awards for Off-Broadway productions between 2010 and 2017.

In 2015, he served as the set designer for Manhattan Theatre Club's production of Fool for Love at The Friedman Theatre on Broadway and as both set designer and costume designer for Deaf West Theatre's production of Spring Awakening, performed in American Sign Language, at The Brooks Atkinson Theatre on Broadway. In 2017, he served as set designer for Circle in the Square's production of Once On This Island on Broadway. Laffrey and Michael Arden, the show's director, took a research trip to Haiti which completely transformed his approach to designing the set for the production. Laffrey stated:

"You cannot begin to describe the effect that trip had on me as a person but also in feeling equipped to responsibly bring this work to Broadway in 2017 in a way that was true to the piece and what it portrays ... Hurricane Maria happened in Puerto Rico and the storms that affected those tiny little islands in the Bahamas. We continued to collect and pull those images because it felt like 'Island' is ultimately dealing with, at its core, how you survive in the face of something like that and the restorative power of storytelling. You feel that connection of the human spirit threaded through all these places."

His design for Once On This Island received widespread positive critical acclaim with multiple media outlets describing it as "a fractured paradisiac vision", "lush [and] immersive", "evocative", "ambitious", and "an aesthetic experience unlike anything else on Broadway."

In 2017, Laffrey was awarded the Obie Award for Sustained Excellence of Set and Costume Design.