A Dekabrist ("Decembrist") was a participant in the Russian Decembrist revolt of 1825.
It can also refer to: Soviet ship Dekabrist, several vessels of the former Soviet Union Dekabrist (flower), the common Russian term for a Christmas cactus
See also Dekabristy, a 1927 Russian film Dekabristov Island, a riverine island in St Petersburg Decembrist (disambiguation)