Trolls Holiday is a 2017 American animated musical Christmas special that premiered on NBC on November 24, 2017. Based on the film Trolls, the half-hour Christmas special was directed by Joel Crawford and produced by DreamWorks Animation. The main cast all reprised their roles as their respective characters, most notably Anna Kendrick, Justin Timberlake, and Zooey Deschanel as Poppy, Branch, and Bridget, respectively. Another special with the same theme, but with another plot, Trolls: Holiday in Harmony, aired on November 26, 2021, on NBC.

After the Bergen Town tradition of eating Trolls on Trollstice is cancelled, the Bergens have no holidays left to celebrate. Poppy, who has received numerous cards from the Bergens celebrating different days of the week or times of day, decides to share Troll holidays with the Bergens. She enlists the Snack Pack and her friend Branch, unfamiliar with being happy, to head to Bergen Town on a bus driven by Cloud Guy. Upon traveling through a strange wormhole, the Trolls arrive in Bergen Town.

The Trolls show Bridget and Gristle their holiday traditions, but the spectacle overwhelms the Bergens. Bridget, exasperated by the spectacle, tells Poppy to leave and give them some space. Heartbroken, Poppy departs Bergen Town for the forest with her friends in pursuit. Poppy tells Branch of her fear that she might have lost Bridget's friendship forever, but Branch tries to cheer her up by singing songs pointing out where she went wrong. Meanwhile, back in Bergen Town, Bridget and Gristle start to regret how hard they both were on the Trolls, and Bridget acknowledges that Poppy cares about the Bergens.

Poppy soon realizes that she was so busy trying to celebrate with the Bergens that she was not listening to Bridget's needs. When Poppy and Branch return to Bergen Town, they find that the entire town is decorated with decorations made by the Bergens. Poppy and Bridget apologize to each other, and Branch finally cracks a smile, much to Poppy and Bridget's delight. The Bergens and the Trolls all celebrate their new holiday, Troll-A-Bration, together.

• Anna Kendrick as Queen Poppy, the excitable and optimistic queen of the Trolls.
• Justin Timberlake as Branch, an over-cautious, but good-hearted survivalist Troll.
• Zooey Deschanel as Bridget, a kind-hearted Bergen and former scullery maid who befriended the Trolls and became queen of the Bergens.
• Christopher Mintz-Plasse as King Gristle Jr., the king of the Bergens.
• James Corden as Biggie, a large, friendly British Troll and the owner of Mr. Dinkles.
• Ron Funches as Cooper, a hip giraffe-like Troll.
• Kunal Nayyar as Guy Diamond, a glittery, naked Troll with a highly auto-tuned voice.
• Icona Pop as Satin and Chenille, twin Trolls with a flair for fashion design and are conjoined by their hair.
• Walt Dohrn as:
  • Smidge, a small, inordinately strong female Troll with a masculine voice.
  • Cloud Guy, an eccentric anthropomorphic cloud.
  • Fuzzbert, a Troll whose legs are the only thing visible beside his hair.
• Ester Dean as Legsly, the tallest of the Trolls. Legsly replaces DJ Suki from the previous film.
• Curtis Stone as Todd, a royal guard that works for the Bergen Royal Family.
• Mike Mitchell as Chad, a royal guard that works for the Bergen Royal Family.
• Kevin Michael Richardson as Mr. Dinkles, Biggie's pet worm and the narrator of the special.

A soundtrack featuring seven songs from the special was released on October 27, 2017, by RCA Records.^[1]

The special premiered on NBC on November 24, 2017 (Black Friday).^[5]