Utigurs were nomadic equestrians who flourished in the Pontic-Caspian steppe in the 6th century AD. They were similar to the Kutrigurs to their west.
The name Ut(r)igur, recorded as Οὺτ(τ)ρίγουροι, Οὺτούργουροι and Οὺτρίγου, is generally considered as a metathecized form suggested by Gyula Németh of Turkic *Otur-Oğur, thus the *Uturğur mean "Thirty Oğurs (tribes)".Lajos Ligeti proposed utur- (to resist), while Louis Bazin uturkar (the victors-conquerors), Quturgur and qudurmaq (the enrages).
There has been little scholarly support for theories linking the names Kutrigur and Utigur to peoples such as the Guti/Quti and/or Udi/Uti, of Ancient Southwest Asia and the Caucasus respectively, which have been posited by scholars such as Osman Karatay, and Yury Zuev. No evidence has been presented that the Guti moved from their homeland in the Zagros Mountains (modern Iran/Iraq) to the Steppes, and they are widely believed to have spoken an Indo-European (rather than Turkic) language. The Udi were mentioned by Pliny the Elder (Natural History, VI, book, 39), in connection with the Aorsi (sometimes jointly as the Utidorsi), the Sarmatians and a Scythian caste/tribe known as the Aroteres ("Cultivators"), who lived "above the maritime coast of [Caucasian] Albania and the ... Udini" on the western shores of the Caspian Sea. Neither is there general acceptance of Edwin G. Pulleyblank's suggestion that the Utigurs may be linked to the Yuezhi – an Indo-European people that settled in Western China during ancient times.