Zone 3 may refer to:
London fare zone 3, of the Transport for London zonal system Hardiness zone 3, a geographically defined zone in which a specific category of plant life is capable of growing Zone 3, a literary journal published at Austin Peay State University Southeastern Atlanta Zone 3 of Milan Zone Laser Tag, a Laser Tag game brand. "Zone 3", a song by Denzel Currey from the 2013 album Nostalgic 64