KDUB

KDUB may refer to:


 * KDUB-LP, a low-power radio station (99.9 FM) licensed to serve Watsonville, California, United States
 * KNSY, a radio station (89.7 FM) licensed to serve Dubuque, Iowa, United States, which held the call sign KDUB from 2004 to 2012
 * KFXB-TV, a television station (channel 40) licensed to serve Dubuque, Iowa, which used the call signs KDUB or KDUB-TV until August 1995