The following are known Game Genie Codes for Dragon Warrior III on Nintendo Entertainment System (NES).

Note: These codes only work when starting a new game. Many of them will give varying quantities of attributes at different times. They may also affect more than one attribute at different times.
• NYUOYPZU
  King gives 255 gold
• PASPZPAA
  King gives mega-gold
• YTVUGZYE
  Player starts with increased strength and/or attack power
• VYVUGZYE
  Player starts with greatly increased strength and/or attack power
• LTNLPZIA
  Player starts with increased agility and/or defense
• NYNLPZIE
  Player starts with greatly increased agility and/or defense
• LTNLTZYA
  Player starts with increased vitality and/or hit points
• NYNLTZYE
  Player starts with greatly increased vitality and/or hit points
• LTNULZTA
  Player starts with increased magic, maximum magic points and/or intelligence
• NYNULZTE
  Player starts with greatly increased magic, maximum magic points and/or intelligence
• ZVELAZGA
  Player starts with increased luck
• VNELAZGE
  Player starts with greatly increased luck
• LTVUIZPA
  Wizard starts with increased strength and/or attack power
• VYVUIZPE
  Wizard starts with greatly increased strength and/or attack power
• ZTNLZZGA
  Wizard starts with increased agility and/or defense
• NYNLZZGE
  Wizard starts with greatly increased agility and/or defense
• ZTNLYZZA
  Wizard starts with increased vitality and/or maximum hit points
• OPNLYZZE
  Wizard starts with greatly increased vitality and/or maximum hit points
• LTNUGXPA
  Wizard starts with increased magic, intelligence and/or maximum magic
• LVELPZZA
  Wizard starts with increased luck
• VNELPZZE
  Wizard starts with greatly increased luck
• ZTVUTZLA
  Pilgrim starts with increased strength and/or attack power
• VYVUTZLE
  Pilgrim starts with greatly increased strength and/or attack power
• ZTNLLZGA
  Pilgrim starts with increased agility and/or defense
• LTNUAZLA
  Pilgrim starts with increased vitality and/or maximum hit points
• VYNUAZLE
  Pilgrim starts with greatly increased vitality and/or maximum hit points
• LTNUIXAA
  Pilgrim starts with increased magic and/or intelligence
• VYNUIXAE
  Pilgrim starts with greatly increased magic and/or intelligence
• ZVELZZLA
  Pilgrim starts with increased luck
• VNELZZLE
  Pilgrim starts with greatly increased luck
• LTNLAXPA
  Soldier starts with increased strength and/or attack power
• VYNLAXPE
  Soldier starts with greatly increased strength and/or attack power
• ZTNLIZZA
  Soldier starts with increased agility and/or defense
• LTNUZZYA
  Soldier starts with increased vitality and/or maximum hit points
• IAOZENNY
  Start with 6 Battle-Axes
• TAOZENNY
  Start with 6 Broadswords
• YAOZENNY
  Start with 6 Wizard’s Wands
• YAOZENNN
  Start with 6 Demon’s Axes
• GPOZENNY
  Start with 6 Multi-Edge Swords
• IPOZENNY
  Start with 6 Staffs of Force
• TPOZENNY
  Start with 6 Swords of Illusion
• APOZENNN
  Start with 6 Falcon Swords
• AZOZENNN
  Start with 6 Armor of Radiance