PS2 or PS/2 may refer to:

• PlayStation 2, a sixth-generation video game console made by Sony
• IBM Personal System/2 (IBM PS/2), a series of personal computers introduced in 1987
  • PS/2 connector, an interface standard for PC mice and keyboards, introduced with the IBM PS/2
• PostScript Level 2, the second version of the page description language
• Phantasy Star II, the second installment of the Phantasy Star series of video games
• Pokémon Stadium 2 (Japan), the second Pokémon Stadium video game for the Nintendo 64 in Japan, also known as Pokémon Stadium in North America
• Pokémon Stadium 2 (North America), the third Pokémon Stadium video game, also known as Pokémon Stadium Kin Gin in Japan
• Power Stone 2, the sequel to Power Stone for the Sega Dreamcast
• Photosystem II, a complex involved in photosynthesis

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.