The M1867 Russian Krnka (Винтовка Крнка́) was a breech loading conversion of the muzzle-loading Model 1857 Six Line rifle musket designed by Austro-Hungarian arms maker, Sylvester Krnka.

It was adopted by the Russian Empire in 1869, and was similar to the contemporary Snider-Enfield and Tabatiere conversions.

Two main versions were produced: infantry and cavalry rifles.

The rifles were issued to conscripts and police forces in the Central Asian territories, like Samarkand.

After being taken out of service, many Krnka rifles were converted into cheap smoothbore hunting shotguns.