The Rumpler C.X, produced under the company designation Rumpler 8C 14, was a German two-seat observation aircraft.

It was developed from the earlier Rumpler 8C 13 prototype by Rumpler in early 1918.

The prototype had a similar wing design to the Rumpler C.VII, powered by a 260 hp (194 kW) Mercedes D.IVa engine and was later powered by a 240 hp (179 kW) Maybach Mb.IVa.

The C.X had the highest top speed and service ceiling of all German C-type aircraft and an order was placed for the aircraft in August 1918, but few were built and tested before the war ended.

[1] Data from Over the Front, Volume 23[1][2]General characteristics Performance Armament