Slam Dunk South is a music festival that takes place annually in Hatfield, Hertfordshire, UK. It is one of two Slam Dunk festivals, the other being Slam Dunk North, which takes place in Leeds. The festival features a diverse range of rock, punk, and alternative music, with both established and up-and-coming artists performing on multiple stages.

The festival was first held in 2006 and has since grown in popularity, attracting a large and dedicated following of music fans. The festival has hosted a range of well-known acts over the years, including Fall Out Boy, Panic! at the Disco, and All Time Low, as well as showcasing emerging talent in the rock and punk scenes.

In addition to the music, Slam Dunk South also features a variety of food and drink options, as well as merchandise stalls and other activities. The festival has a lively and energetic atmosphere, with fans enjoying the music and socializing with like-minded people.

Overall, Slam Dunk South is a great festival for fans of rock, punk, and alternative music, offering a diverse lineup and a fun and inclusive atmosphere.