Captain Stephen Alley MC (14 February 1876 – 1969)[1] was a British mechanical engineer and Secret Intelligence Service (MI6) agent in pre-revolutionary Russia who may have had an involvement in the murder of Rasputin in 1916 and in a plan to try to rescue the Russian Imperial Family, the Romanovs, imprisoned in Ipatiev House in 1918 by the Bolsheviks.

[4] After being educated in Russia he attended King's College London where he studied English Literature, and later moved to Glasgow University where he took a degree in engineering.

[6] He is noted by many authors and documentaries for alleged involvement in the murder of Grigori Rasputin whilst working for the British Military Control Office in Saint Petersburg.

[7][8] Alley was alleged to be the author of a letter to John Scale on 25 December 1916 that, if authentic, is claimed by BBC History to be "the best proof of British involvement in Rasputin's murder.

"[9] Stephen Alley participated in a plan to try to rescue the Russian Imperial Family, the Romanovs, imprisoned in the Ipatiev House in 1918 by the Bolsheviks.