The Dinara Division (Serbian: Динарска дивизија / Dinarska divizija) was an irregular Chetnik formation that existed during the World War II Axis occupation of Yugoslavia that largely operated as auxiliaries of the occupying forces and fought the Yugoslav Partisans.

Organized in 1942 with assistance from Ilija Trifunović-Birčanin and headed by Momčilo Đujić, the division incorporated commanders in Bosnia and Herzegovina, northern Dalmatia, and the Lika region.

In May 1945 Đujić surrendered the division to Allied forces, who took its members to southern Italy, from where they were taken to displaced persons camps in Germany and then dispersed.

"[2] NDH authorities, led by the Ustaše militia,[3] subsequently implemented genocidal policies against the Serb, Jewish and Romani population living within the borders of the new state.

Ilija Trifunović-Birčanin played a central role in organizing the units of Chetnik leaders in western Bosnia, Lika, and northern Dalmatia into the Dinara Division and dispatched former Royal Yugoslav Army officers to help.

Đujić was designated the commander of the division and its goal was for the "establishment of a Serb national state" in which "an exclusively Orthodox population is to live".

"[11] In March 1942 the division prepared a programmatic statement that concerned the "specific conditions of Bosnia and Herzegovina, northern Dalmatia, and southwestern Croatia (Lika)."

The statement echoed the tone of Mihailović's instructions issued in December 1941 to Chetnik commanders Major Đorđije Lašić and Captain Pavle Đurišić in pursuing a Greater Serbia that was to be inhabited solely by Serbs, the establishment of a corridor through the linkage of the territories Herzegovina, northern Dalmatia, Bosnia, and Lika to Slovenia; the mobilization of all Serb nationalists for the ethnic cleansing of other nationalities that existed in Herzegovina, Dalmatia, Bosnia, and Lika.

[14][15] During early February 1943, as the Partisans began to prevail over the Chetniks as part of Case White, Đujić and Petar Baćović attempted to mount a counteroffensive around Bosansko Grahovo in western Bosnia preliminary to re-capturing Drvar.

[16] By early August, the Dinara Division was "poorly formed, badly armed and disciplined", lacked accurate rolls of its members, and consisted of no more than 3,000 effectives.

Lieutenant Colonel Mladen Žujović, one of Mihailović's few remaining delegates in the area, concluded that the division was "a pure figment of the imagination.

[22] On 30 April 1944, Chetniks, in collaboration with the SS Police Regiment Bozen and local Italian Fascists, massacred 269 Croat civilians in village of Lipa, near Rijeka, of whom 121 were children between seven months and 15 years old.

[25] When Đujić reached Slovenia, his forces joined Dobroslav Jevđević's Chetniks, Dimitrije Ljotić's Serbian Volunteer Corps, and the remnants of Milan Nedić's Serbian Shock Corps in forming a single unit that was under the command of Odilo Globocnik of the Higher SS and Police Leader in the Adriatic Littoral.