Siriraj Bimuksthan Museum, accommodated in the former Thonburi Train Station (fig.), is one of several museums at the Siriraj Hospital Museum (fig.) and is named after the Rear Palace, which formerly stood at this location.

The Rear Palace is known in Thai as Wang Lang, but officially referred to as Krom Phra Rachawang Bowon Sathaan Phimuk, which thus led to the name of the museum, as its proper pronunciation is Siriraat Phimuk Sathaan.