The Marburg Gate was one of the three large gates of the Siegen city fortifications of the then Nassau city of Siegen. It was located at the northeast end of the old town on the Siegberg in the area of today's Marburg Gate, which connects to Marburg Street.
Mentioned as early as 1311, it is the first mentioned gate in Siegen. At the same time, it had the largest fortification of the three gate towers. In the 16th century, it was expanded into a bulwark. From around 1800, the city's fortifications increasingly fell into disrepair. In 1830, the arched gate of the Marburg Gate was removed, and in 1852 and 1889 the gate was finally demolished.