Iskhak Abdulovich Akhmerov (Russian: Исха́к Абду́лович Ахме́ров, Tatar: Исхак Габдулла улы Әхмәров, romanized: İsxaq Ğabdulla ulı Əxmərov) (1901–1976) was a highly decorated OGPU/NKVD (KGB) Soviet security officer, best known to historians for his role in KGB operations in the United States 1942–1945. His name appears in the Venona decryptions over fifty times, often as signatory, and on his return to the Soviet Union in 1945/46, he rose to deputy chief of the KGB's 'illegal' intelligence section. (NOTE: Many details from Haynes and Klehr's Venona come from Veterany Vneshnei Razvedki Rossii [Moscow: Russian Foreign Intelligence Service, 1995], which forms the basis of their profile of him in their book's Appendix E.)