KATZ (1600 kHz, "Hallelujah 1600") is an commercial AM radio station in St. Louis, Missouri.

Its transmitter is on Rock Springs Road at McKinley Avenue in Washington Park, Illinois.

Broadcasters who worked at KATZ in the 1950s and 1960s include Gloria Pritchard, Dave Dixon, Jesse "Spider" Burks, Bernard Hayes, and Willie Mae Gracy.

[4] In 1957, KATZ's ownership was transferred from the original owner, Bernice Schwartz, to Rollins Broadcasting.

Inter Urban Broadcasting, a minority-owned and local company, purchased KATZ 1600 and its sister station KATZ-FM.