Grigory Yefimovich Grum-Grshimailo (‹See Tfd›Russian: Григо́рий Ефи́мович Грумм-Гржима́йло, 1860–1936) was a Russian zoologist best known for his expeditions to Central Asia (Pamir, Bukhara, Tianshan, Gansu, and Kukunor), western Mongolia and Tuva, and the Russian Far East. In literature his name is sometimes spelled as Grigor Efimowitsch Grumm-Grzhimailo or Grigory Yefimovich Grumm-Grzhimaylo.