The Old Kiln Light Railway^[1] is a 2 ft (610 mm) narrow gauge railway at the Rural Life Living Museum in Tilford, near Farnham, Surrey. It has a collection of historic locomotives and rolling stock including two steam locomotives. It operates on most weekends in the summer and occasionally certain midweek days during school half term.

Founded in the early 1970s as a heritage Wey Valley Light Railway, it was first located around a disused pumping station in Farnham. In 1982 the land was sold for housing and the track and equipment were moved to the Old Kiln Museum, now known as the Rural Life Centre. The line has since lengthened around the centre and a small stretch of track serves the museum's heritage timber yard demonstration area.

The railway has four stations: Reeds Road, Old Kiln Halt, Oatlands and Mills Wood.

Reeds Road was built in 2003 to replace a sleeper-built platform,^[2] is the south-western terminus, has a passenger waiting room, a run-round loop and a siding for storing rolling stock.

Old Kiln Halt is where the locomotive works and carriage sheds are located, along with further storage sidings. The platform at this station is currently not open for public use.

Oatlands was the far terminus of the line until extension to Mills Wood. It has a platform with a small waiting room with a stove. It is located behind the museum's playground and is sometimes used as the passenger boarding point during events. It was previously named "Waverley End Station".

Mills Wood is the other terminus of the line, on the north-east side of the Rural Life Centre. It has a waiting room partly built from the body of an old Portsdown and Horndean Light Railway passenger tram, a run-round loop and a branch connection to the woodyard. Passengers typically board trains here on normal running days.

The OKLR received the "Surrey Industrial History Group Conservation" award in 1994^[9][10]