Bunker Kunersdorf, Military bunker in Bliesdorf, Germany.

Bunker Kunersdorf is a two-storey bunker shell west of Kunersdorf, in the municipality of Bliesdorf, Brandenburg. It housed radio-technical and general equipment for operating a radio transmission centre. Eleven remote transmission points, known as "Sputniks", stood in steel containers with typical post structures across roughly 400 km² around the site.

Bunker Kunersdorf was completed and entered service in 1982 as the Ministry of National Defence's remote radio transmission centre, listed as Objekt 17/448. Eleven detached transmission sites, known as "Sputniks", were built in steel kettles within roughly 400 km² around Kunersdorf. After 1990 the grounds first housed refugees; today the site is privately owned and cared for by the Förderverein Rüsterbusch Kunersdorf 2008, and it has been open to the public on fixed dates since 30 June 2011.

The bunker served as a key communication hub for East German authorities during the Cold War. Visitors can observe how such facilities were integrated into the state's operations and infrastructure of that era.

Comfortable shoes are recommended since the underground passages are uneven and feature several staircases throughout. The facility can be cool underground, so bringing a layer of warm clothing is advisable.

The bunker's radio transmitters were supplemented by eleven remote transmission sites housed in steel kettles with a typical post-office superstructure, nicknamed "Sputniks", scattered across roughly 400 km² around Kunersdorf. The complex is listed as Objekt 17/448, Funksendezentrale Frankfurt (O)-448 or ZSTM.