Internal Combustion may refer to:

• Internal combustion engine
• Internal Combustion (album), a 2010 album by Society Burning
• Internal Combustion, a 1994 album by Canned Heat
• "Internal Combustion" (short story), a 1956 story by L. Sprague de Camp
• Internal Combustion, a 2007 nonfiction book by Edwin Black
• "Internal Combustion" (CSI), a 2010 TV episode