Dark (type)

The Dark type was introduced in the second generation of Pokemon games as a measure to balance the types. In particular, its resistance to Psychic cut down Psychic's advantage by a long way. When paired with the Ghost type it is the only type combination to have no weaknesses.

39
Dark type Pokemon

9
Single type Pokemon

30
Dual type Pokemon

29
Dark-type moves

Attack pros & cons

Dark moves are super-effective against:

Psychic Ghost

Dark moves are not very effective against:

Fighting Dark Steel

Defense pros & cons

These types have no effect on Dark pokemon:

Psychic

These types are not very effective against Dark pokemon:

Ghost Dark

These types are super-effective against Dark pokemon:

Fighting Bug

Dual-type attack pros & cons

The chart below shows the strength of the Dark type against every type combination. The numbers in the squares show the fraction damage the move will do (i.e. ½ means 50% damage and not very effective, while 4 means 400% - super-effective).

For example, look where the Grass and Poison types intersect to see how good a Dark-type move would be against a pokemon like Venusaur. You will see that it is 100%.

	nor	fir	wat	ele	gra	ice	fig	poi	gro	fly	psy	bug	roc	gho	dra	dar	ste
Fire
Water
Electric
Grass
Ice
Fighting	½	½	½	½	½	½
Poison							½
Ground							½
Flying							½
Psychic	2	2	2	2	2	2		2	2	2
Bug							½				2
Rock							½				2
Ghost	2	2	2	2	2	2		2	2	2	4	2	2
Dragon							½				2			2
Dark	½	½	½	½	½	½	¼	½	½	½		½	½		½
Steel	½	½	½	½	½	½	¼	½	½	½		½	½		½	¼
Fairy							½				2			2		½	½

Note: the exact strengths and weaknesses of the newly revealed Fairy type are not yet confirmed.

Dark Pokemon stat averages

67.1
HP
Ranked #10

89.6
Attack
Ranked #3

65.7
Defense
Ranked #12

70.7
Sp. Attack
Ranked #10

63.6
Sp. Defense
Ranked #15

73.9
Speed
Ranked #4

Notable Dark-type trainers

Karen
Elite Four
Gold/Silver
Karen
Elite Four
Crystal
Sidney
Elite Four
Ruby/Sapphire
Sidney
Elite Four
Emerald
Karen
Elite Four
HeartGold/SoulSilver
Grimsley
Elite Four
Black/White
Grimsley
Elite Four
Black 2/White 2

Dark Pokemon

There are 39 Dark-type pokemon.
See also:

Umbreon
#197 / Dark Murkrow
#198 / Dark · Flying Sneasel
#215 / Dark · Ice Houndour
#228 / Dark · Fire Houndoom
#229 / Dark · Fire Tyranitar
#248 / Rock · Dark Poochyena
#261 / Dark Mightyena
#262 / Dark Nuzleaf
#274 / Grass · Dark Shiftry
#275 / Grass · Dark Sableye
#302 / Dark · Ghost Carvanha
#318 / Water · Dark Sharpedo
#319 / Water · Dark Cacturne
#332 / Grass · Dark Crawdaunt
#342 / Water · Dark Absol
#359 / Dark Honchkrow
#430 / Dark · Flying Stunky
#434 / Poison · Dark Skuntank
#435 / Poison · Dark Spiritomb
#442 / Ghost · Dark Drapion
#452 / Poison · Dark Weavile
#461 / Dark · Ice Darkrai
#491 / Dark Purrloin
#509 / Dark Liepard
#510 / Dark Sandile
#551 / Ground · Dark Krokorok
#552 / Ground · Dark Krookodile
#553 / Ground · Dark Scraggy
#559 / Dark · Fighting Scrafty
#560 / Dark · Fighting Zorua
#570 / Dark Zoroark
#571 / Dark Pawniard
#624 / Dark · Steel Bisharp
#625 / Dark · Steel Vullaby
#629 / Dark · Flying Mandibuzz
#630 / Dark · Flying Deino
#633 / Dark · Dragon Zweilous
#634 / Dark · Dragon Hydreigon
#635 / Dark · Dragon