Bergslagen Military District (Swedish: Bergslagens militärområde, Milo B), originally V Military District (Swedish: V. militärområdet) was a Swedish military district, a command of the Swedish Armed Forces that had operational control over the informal Bergslagen region, for most time of its existence corresponding to the area covered by the counties of Värmland, Örebro and Kopparberg (now Dalarna County).

Milo B was created in 1966 along with five other military districts as part of a reorganisation of the administrative divisions of the Swedish Armed Forces.

It can be seen as the successor of V Military District (V. militärområdet) created in 1942, but that did not have the same tasks as Milo B.

The military district consisted of the land covered by the above-mentioned counties.

Blazon: "Azur, an erect sword with the area letter (B - Bergslagen) surrounded by an open chaplet of oak leaves, all or.