DK2 may refer to:
Entertainment Donkey Kong Jr., a 1982 video game sometimes unofficially referred to as "Donkey Kong 2" Donkey Kong II, a 1983 Game & Watch game Dungeon Keeper 2, a 1999 video game Door Kickers 2: Task Force North, a 2025 video game The Dark Knight Strikes Again, a 2001–2002 Batman comic series
Other uses Oculus Rift Development Kit 2, a virtual reality headset released in 2014 Droga krajowa nr 2, a national road in Poland