Dean Allan DeBlois is a Canadian filmmaker and animator. He is best known for writing and directing the Oscar-nominated animated feature films Lilo & Stitch for Walt Disney Animation Studios, the How to Train Your Dragon film trilogy for DreamWorks Animation, and directing the documentary Heima about the Icelandic band Sigur Rós.

Lilo & Stitch is a 2002 American animated science-fiction comedy-drama film produced by Walt Disney Feature Animation and released by Walt Disney Pictures. It was written and directed by Chris Sanders and Dean DeBlois and produced by Clark Spencer, based on an original story created by Sanders. It features Daveigh Chase and Sanders as the voices of the title characters and also features the voices of Tia Carrere, David Ogden Stiers, Kevin McDonald, Ving Rhames, Jason Scott Lee, and Kevin Michael Richardson. It was the second of three Disney animated feature films produced primarily at the Florida animation studio in Disney's Hollywood Studios at Walt Disney World near Orlando, Florida.