• [+] Fallout: New Vegas mentioned-only factions‎ (3 C, 27 P)

B

• [+] Boomers‎ (1 C, 15 P)

C

• [+] Caesar's Legion‎ (2 C, 46 P)
• [+] Chairmen‎ (1 C, 3 P)
• [×] Collector's Edition playing card factions‎ (9 P)

D

• [+] Dead Money factions‎ (1 C)

F

• [×] Fallout: New Vegas religions‎ (3 P)
• [+] Fallout: New Vegas reputations‎ (1 C, 1 P)

F cont.

• [+] Fiends‎ (1 C, 4 P)

G

• [×] Gun Runners‎ (9 P)

H

• [+] Honest Hearts factions‎ (4 C, 5 P)

J

• [+] Jackals‎ (1 C, 5 P)

K

• [+] Khans‎ (4 C, 11 P)
• [+] Kings‎ (1 C, 3 P)

L

• [+] Lonesome Road factions‎ (1 C)

M

• [+] Maud's Muggers‎ (1 C, 2 P)

N

• [+] New California Republic‎ (8 C, 88 P)

O

• [×] Old World Blues factions‎ (2 P)
• [+] Omertas‎ (1 C, 3 P)

P

• [+] Powder Gangers‎ (2 C, 4 P)

V

• [+] Vipers‎ (1 C, 4 P)

W

• [+] White Glove Society‎ (1 C, 3 P)

• Fallout: New Vegas factions

1

• 1st Recon

B

• Boomers
• Bright Brotherhood
• Brotherhood of Steel
• Brotherhood of Steel (Mojave chapter)

C

• Caesar's Legion
• Cassidy Caravans
• Chairmen
• Crimson Caravan

D

• Davison's nightkin

E

• Enclave
• Enclave remnants

F

• Fiends

F cont.

• Followers of the Apocalypse

G

• Greasers
• Great Khans
• Gun Runners

J

• Jackals

K

• Khans
• Kings

M

• Maud's Muggers
• Mojave Express

N

• New California Republic
• New California Republic Army
• New California Republic Rangers

O

• Office of Science and Industry
• Omertas

P

• Powder Gangers

R

• Rad Pack Revue
• Raiders
• Robert House

S

• Scorpions (gang)
• State of Utobitha

T

• The Misfits
• Three Families
• Tribals

U

• United States Armed Forces

V

• Van Graffs
• Vipers

W

• Westside Militia
• White Glove Society