The King of Fighters '98 may refer to:
- The King of Fighters '98 (Mega Drive), a bootleg fighting game for the Sega Mega Drive
- The King of Fighters '98 (SNES), a port of the Mega Drive game published by DVS Electronic Co.
- A title screen hack of Rex Soft's Famicom game The King of Fighters '97
- A title screen hack of the bootleg monochrome Game Boy hack The King of Fighters '97