Stage 5 (or, originally, "Stage V") is an unofficial stage at the Walnut Valley Festival, an annual bluegrass festival in Winfield, Kansas, United States. Set up in the Pecan Grove campground, the informal stage began in 1987 when camper Russell Brace and friends built it on the back of a . The stage is so-named because the festival proper has four main stages. The stage was immediately popular and is now a cherished tradition at the annual event.