Wishek is a city in McIntosh County, North Dakota, United States. The population was 864 at the 2020 census. Wishek was platted in 1898 when the railroad was extended to that point. A post office has been in operation at Wishek since 1898. The city was named in honor of John H. Wishek Sr., a local cattleman. Wishek was originally built up chiefly by Germans from Russia. The Old Wishek City Hall was built in 1916.