Zyba is an unincorporated community in Sumner County, Kansas, United States. It is located approximately four miles southwest of the Kansas Star Casino at N West St and E 120th Ave N, next to the railroad and Ninnescah River.
A post office was opened in Zyba in 1887, and remained in operation until it was discontinued in 1906.
The community is served by Belle Plaine USD 357 public school district.