• Defunct socialist organizations in the United States (3 C, 8 P)

A

• Anarchist organizations in the United States (3 C, 36 P)
• Anti-fascist organizations in the United States (4 C, 37 P)

C

• Communist organizations in the United States (5 C, 8 P)

D

• Democratic socialist organizations in the United States (3 C, 7 P)

F

• Socialist feminist organizations in the United States (4 C, 6 P)

M

• Multi-tendency organizations in the United States (6 C, 9 P)

P

• Socialist parties in the United States (7 C, 11 P)