Dianna Basso (born 1982 in Toronto, Ontario, Canada) is a Canadian animator and director. She is a director, animator and former animation lead for Jam Filled Toronto. She is the current director for the television episodes. She co-directed the nineteenth season with Don Spencer and David Stoten. She also directed the twentieth season.
- Diesel's Ghostly Christmas (co-director)
- Den and Dart
- Best Engine Ever
- The Little Engine Who Raced Ahead
- Philip to the Rescue
- Thomas the Babysitter
- Rocky Rescue
- The Other Side of the Mountain
- No Help At All
- Goodbye Fat Controller
- All Episodes
- Basso is the first woman ever to direct a Thomas & Friends episode. However, with films and specials included, she is the second woman to direct a Thomas & Friends production, the first being Britt Allcroft as she directed Thomas and the Magic Railroad.