ACF Fiorentina Youth Sector (Italian: Settore Giovanile) comprises the under-20 team and the academy of Italian professional football club ACF Fiorentina. The side currently compete in the Campionato Primavera 1, which they have won four times, and the Coppa Italia Primavera, which they won eight times. Additionally, they have won the Supercoppa Primavera three times, most recently in 2022. The club has also taken part in the annual Torneo di Viareggio, an international tournament of which they are nine-time winners.

The Youth Sector is made up of various squads divided by age groups. All of the squads train at the first team's main training ground, "Rocco B. Commisso Viola Park" Training Center in Bagno a Ripoli.

Fiorentina has historically placed great importance on nurturing local talent and continues to do so. Many young players have successfully transitioned from the youth academy to the first team, with notable examples like Claudio Merlo, who spent most of his career in Florence. Merlo joined Fiorentina at the age of 17 after moving from Rome and quickly rose through the ranks. Alongside players like Luciano Chiarugi, they became a key figure in the Fiorentina team of the 1960s, famously debuting in Serie A against the legendary Inter side in 1965. Their contributions helped the team win the Mitropa Cup and the Italian Cup, culminating in Fiorentina's iconic 1969 Scudetto triumph.

In the 1960s, Fiorentina's youth sector achieved its first victory in the prestigious Viareggio Tournament in 1966. The 1970s saw further success with the club winning its first youth league title in the Campionato Primavera, followed by a second title in the 1979–1980 season. During the same decade, the Viola triumphed four more times at the Torneo di Viareggio. The 1980s brought a third and final Campionato Primavera title, while international victories at Viareggio reached a total of eight by 1992. The growth of Fiorentina's youth academy continued to produce successful talents, with numerous players debuting in the first team during the 2000s, including Federico Bernardeschi, Federico Chiesa, and Serbian striker Dusan Vlahovic. The team also embarked on a remarkable winning streak in the Coppa Italia Primavera, securing a total of eight titles by the end of the 2023–2024 season, with five victories in six consecutive finals.

In the 2024–25 Campionato Primavera 1 season, Fiorentina reached the final and consequently qualified for their first appearance in the Youth League. Fiorentina Primavera lost 3–0 to Inter in the final but secured a place in the Domestic Champions Path of the competition. In the second round, Fiorentina were eliminated by Legia Warsaw, losing 6–4 on aggregate.

After 34 years, Fiorentina U18 have won the 2026 edition of the Torneo di Viareggio, reaching a total of nine titles—matching the record held by AC Milan and Juventus. In the same season, after a 43-year wait, Fiorentina Primavera were crowned Italian champions following a 2–1 victory over Parma in the final phase of the championship, held at the Rocco B. Commisso Viola Park.

The Youth Sector is divided into 10 squads: "Primavera" (under-20), under-18, under-17, under-16, under-15, under-13, under-12, under-11, under-10 and under-9.

Fiorentina owns its own training ground with the complex set to provide a single hub for both the men's and women's first teams, as well as the youth academy.