Rickman Creek is a long second-order tributary to the Niobrara River in Keya Paha County, Nebraska.
Rickman Creek rises on the Burton Creek divide about southwest of Highland Cemetery in Keya Paha County and then flows south-southeast to join the Niobrara River about north of School No. 29.
Rickman Creek drains of area, receives about of precipitation, and is about 46.02% forested.