Class 207M is a prototype series of Polish light Diesel Multiple Units (a.k.a. railcars). Only six were made in following configurations:
- two cars - a set of 207M power car and 207Mr trailer-control car (PKP designation SA101+SA121)
- three cars - a set of: 207Ma power car, 207Mra trailer car, 207Mb power car (PKP designation SA102+SA111+SA102)