Wilder is a home rule-class city in Campbell County, Kentucky, United States.

St. John the Baptist Roman Catholic Church was built in 1858 by German immigrants.

"Wilder Station" is now located on property owned by Newport Steel.

It is the home of supposed ghostly hauntings at the country music nightclub and honky tonk, Bobby Mackey's Music World, which has been called "the most haunted nightclub in America".

31.2% of all households were made up of individuals, and 7.1% had someone living alone who was 65 years of age or older.