KSMB (94.5 MHz, "94.5 KSMB") is a top 40 (CHR) radio station in Lafayette, Louisiana, owned by Cumulus Media. Its studios are located on Galbert Road in Lafayette, and its transmitter is located south of Church Point, Louisiana.

KSMB began broadcasting in 1964 as Lafayette's first FM station. Its call letters stand for Southland Music Broadcasting, the station's original owner.

Through the 1960s it featured a strictly Cajun, swamp pop and zydeco Americana format. By the 1970s, the station had established an AOR format as "K94 The Stereo Rock". In late 1984, the format was gradually shifted to top 40 as "HitRadio 94½", a process completed by October. This branding lasted until 1994, when it became "94.5 KSMB".

Citadel Broadcasting purchased KSMB from Powell Broadcasting in 1999. Citadel merged with Cumulus Media on September 16, 2011.

• KSMB website
• Facility details for Facility ID 41057 (KSMB) in the FCC Licensing and Management System
• KSMB in Nielsen Audio's FM station database

30°21′45″N 92°12′53″W / 30.3624°N 92.2148°W / 30.3624; -92.2148