Thinking Plague is a United States avant-rock group founded in 1982 by guitarist/composer, Mike Johnson, and bass guitarist/drummer, Bob Drake. Based in Denver, Colorado, the band has been active off and on since 1982, taking on a number of musicians over the years. They have made six studio albums between 1984 and 2012, and released one live album recorded at NEARfest in 2000.

Their music is a mix of rock, folk, jazz and 20th-century classical music. Music.com remarked that "...Thinking Plague stand out as a shining example of avant-garde music blended with just enough rock for it to be called progressive rock..."