Sofia the First is an American animated fantasy children's television series created and developed by Craig Gerber for Disney Television Animation and Disney Junior. The series follows a young peasant girl named Sofia, voiced by Ariel Winter, who becomes a princess after her mother marries the King of Enchancia. Episodes focus on her adventures and bonds with others, including her animal friends, with whom she communicates through an amulet that blesses and curses her based upon the goodness of her actions. When creating the series, Gerber aimed to employ relatable situations in a fantasy world; he stated Sofia's position as a child of a single mother allowed the team to explore themes of adaptation and connect to modern children. The series pilot premiered on November 18, 2012, on Disney Channel. The series itself aired from January 11, 2013, to September 8, 2018, on Disney Jr.

Sofia the First was praised for its music, animation, characters, and messages. It received some of the highest viewership for a preschool cable television series; at one point, it became the category's most-watched program. Sofia the First was nominated for 11 Daytime Emmy Awards, including three wins, and received the 2014 Annie Award for Best General Audience Animated TV/Broadcast Production for Preschool Children. A variety of merchandise was influenced by the series, such as theme park rides and books. A spinoff, titled Sofia the First: Royal Magic, is scheduled to premiere in 2026.

A young girl named Sofia and her widowed mother, Miranda, have lived a peasant life in the kingdom of Enchancia. One day, the widowed King Roland of Enchancia and Miranda fell in love and got married. As she eases into her new role as a princess, Sofia goes on numerous adventures. She also bonds with her new family, including her twin step-siblings Amber and James, and settles into her new royal school, where Flora, Fauna and Merryweather from Sleeping Beauty are headmistresses.

Roland gives Sofia a powerful artifact called the Amulet of Avalor, which blesses her for good deeds and curses her for wrongdoings. She becomes friends with rabbit Clover and birds Mia and Robin after the amulet gives her the ability to communicate with animals. The amulet also links "all the princesses there ever were", calling them to help each other when one is in need. Cedric, the royal sorcerer, regularly attempts to steal Sofia's amulet, knowing of its abilities. Cedric plans to use the power of the amulet to overthrow the royal family and take over the kingdom of Enchancia. As he grows closer to Sofia, however, he becomes doubtful about stealing the amulet, and eventually reveals his intentions and apologizes for his actions.

In the third season, Sofia's Aunt Tilly gives her a special book that guides her to a secret library hidden in the castle. The library is filled with hundreds of unfinished books; Sofia is responsible for giving each story a happy ending. In the fourth season, a book leads her to the Mystic Isles, a land above the clouds where all magic originates. She saves the Isles from the evil crystal master Prisma and begins training to become the Protector of the Ever Realm. Prisma discovers evil sorceress Vor and frees her using the "Wicked Nine", in spite of Sofia and the other protectors' efforts to stop her. In the series finale, Sofia defeats Vor and officially becomes the Protector of the Ever Realm.

For five years, Disney writers, child-development and early-education experts and storytelling consultants worked to create a television show that would bypass stereotypes of evil stepmothers and girls requiring princes to save them. Disney also wanted it to spawn various merchandise. Craig Gerber, who was writing for the company's Tinker Bell film series, was approached by Disney Junior's Nancy Kanter to create a television series about princesses aimed at children aged two to seven. Though excited to conceive a fantasy world and Princess fairy tale, Gerber wanted the show to be both entertaining and educational, teaching children how to be better people and solutions to social problems. His son often emulated a variety of fantasy characters with whom he had little in common. In the hopes the show could be a "magic mirror" for his son, Gerber employed relatable situations into the fantasy world, which became the genesis for Princess Sofia.

As a child, Gerber lived with his single mother, and her boyfriend and his daughter, whom Gerber considered to be a de facto stepsister. As an adult, he learnt that when step-siblings and parents were involved, ordinary childhood concerns were typically amplified. Decades later, while attempting to lend a contemporary viewpoint to a fairy tale world, he had an epiphany: He considered the possibilities if Sofia was not born a princess and instead married into a royal family. Step-sisters are a common theme in fairy tales. However, having a mixed royal family that included both a father and a mother appeared to be a prime opportunity to convey stories to which modern children could connect. According to Gerber, Sofia being the child of a single mother provided to a simple method to explore themes of adaptation. He hoped for Sofia to serve as a good role model in a society where many young girls desire to be princesses, demonstrating attributes and learning skills that young girls (and boys) could remember long after. Gerber planned to reference multicultural family dynamics as well.

Tim Mertens, the editor of Tangled (2010), recommended Kevin Kliesch, who helped with the film, to Disney Channel as a composer for Sofia the First. The network was positive towards his background, and he booked the job. Kliesch was usually given one to two weeks to write the music, meaning he had to compose for at least three minutes a day to meet this deadline. The score draws upon the sounds of previous Disney films, since the producers hoped to avoid "typical cartoon music". Similarly, in the original songs, Gerber and the composer included aspects of Motown, jazz, and hip-hop music, rather than "cloying kiddie sounds".