Category:Maritime incidents in 1921

• Template:1921 shipwrecks
• List of shipwrecks in 1921

A

• SS Abessinia (1900)
• USS Alabama (BB-8)
• Greek brig Aris
• USLHT Azalea

B

• SMS Baden
• SS Byron

C

• SS Canastota
• Carrier Dove (schooner)
• SS City of Brunswick
• USS Conestoga (AT-54)

D

• Carroll A. Deering
• USS DeLong (DD-129)

E

• SS Equity
• Spanish battleship España
• Esperanto (schooner)
• HMS Europa (1897)

F

• Fitzroy (1912)
• SMS Frankfurt

G

• USS G-1
• SMS G102
• General Pershing (motor ship)
• SS Grampian

H

• USS Herreshoff No. 321
• SS Hewitt
• SS Hong Moh
• HMS Hydra (1912)

I

• SS Imo

K

• HMS K5
• HMS K15
• SS Kenwood Bridge
• SS King Orry (1913)
• HMAS Koolonga
• SS Kwinana

M

• USS Massachusetts (BB-2)
• French submarine Maurice Callot
• Miztec (schooner barge)

N

• USS New Hampshire (1864)

O

• SMS Ostfriesland

P

• HMS Prince George (1895)

R

• USS R-6
• USS R-14
• Japanese submarine Ro-15
• SS Rowan
• Rüsumat No 4

S

• USS S-48

U

• SM U-86
• SM U-117
• SM U-121
• SM U-140
• SM U-151
• SM U-152
• SM U-153
• SM U-161
• SM UB-88
• SM UB-122
• SM UC-97

V

• Vasaorden (barge)

W

• SS Western Comet
• SS Wollongbar (1911)
• USS Woolsey (DD-77)