Field Day is a studio album by Dag Nasty, released in 1988 through Giant Records; it was released in Europe through . The album features a cover of The Ruts classic "Staring at the Rude Boys." It also offers a new recording of Dag Nasty's "Under Your Influence." The original version appears on the band's debut LP Can I Say, with vocalist Dave Smalley. The CD bonus track "12XU" was written by Wire, and was also covered by Brian Baker's former band Minor Threat. The album had sold more than 30,000 copies within a year of its release.