The National Harvest Festival, or Fiesta Nacional de la Vendimia, is an annual event held in Mendoza, Argentina, celebrating the completion of the grape harvest and the arrival of new wine. The festival is structured into four main segments: The Blessing of the Fruits, The White Way of the Queens, The Carousel, and the Central Act, which takes place at the Frank Romero Day Greek Theater. This festival attracts attendees from various regions to enjoy music, culture, and the celebration of viticulture.

For the 2026 edition, the official calendar kicks off on March 1 with the Blessing of the Fruits ceremony, setting the stage for the main festivities that span from March 7 to March 10. During this period, each artist will have their designated day to perform, allowing them to shine while engaging with the audience, highlighting the festival's focus on both music and communal celebration.

The event not only marks a significant moment in the local cultural calendar but also serves to promote Mendoza's viticulture and wine industry, reinforcing its importance in both local and national contexts. As such, the National Harvest Festival showcases the rich traditions of the region and invites tourism, which is vital for the local economy.