|Episode First Shown in||Pokémon Emergency!|
|First Known Owner||James|
|First Game Appeared in|
|National Dex Number||109|
Koffing is the Poison Gas Pokemon. It evolves into Weezing starting at level 35.
Koffing has a round, purple body. Several small openings on Koffing make it resemble a meteorite. Koffing has a skull and crossbones below its face.
A Team Rocket Grunt's Koffing appeared in Forest Passage where it battled Zach's Mankey.
Scout's Koffing debuted in Rocket Reunited.
- Rocket Grunts have used Koffing in Vs. Moltres and Vs. Koffing.
- Proton's Koffing appeared in Vs. Koffing and Vs. Muk.
- It returned in Vs. Electivire.
- A Ninja Boy's Koffing appeared in Vs. Kecleon.
- A coordinator's Koffing appeared in Vs. Hoenn Grand Festival.
- A Pirate's Koffing appeared in Daddy Issues: Raising the Prince of the Sea.
- A coordinator's Koffing appeared in Vs. Magcargo.
- A trainer's Koffing appeared in the Pokémon Dress Up Contest in Vs. Chatot.
- A trainer's Koffing appeared in Vs. Seviper and Zangoose.
- James' Koffing was first shown in Red Got Charmander.
- Team Rocket's Koffing roams around in an alternate reality as a human being; though only resembled a Koffing during his childhood, whereafter he looked more like an Weezing.
- A Team Rocket grunt's Koffing appeared in Reunion in Cherrygrove where they attempted to steal Pokemon from the Pokemon Center.
- Poison Gas
- Clear Smog
- Gyro Ball
- Sludge Bomb
- Destiny Bond
- He is Derrick J. Wyatt's favorite Pokemon.