Quick Scoop

Number 12 in the National Pokédex is Butterfree.

What that means

  • In the classic Kanto/National numbering, #012 = Butterfree.
  • Some regional Pokédexes reuse number 12 for different Pokémon, so the exact answer can change by Pokédex edition.
  • For the most common “Pokédex number 12” question, Butterfree is the expected answer.

Table

[9][3] [9] [9] [9] [9]
Pokédex Pokémon
National / Kanto Butterfree
Johto Pidgeot
Hoenn Zigzagoon
Sinnoh Staraptor
Unova Lillipup
TL;DR: **Butterfree** is Pokémon number 12 in the National Pokédex.