Skim may refer to:

• Skimming (reading), a high speed reading process
• Skimboarding, a sport which involves riding a board on wet sand or shallow water
• Skimming (casinos), a practice in which organized crime took part of the take collected by casinos in Las Vegas

Skim may also refer to:

• Skim milk, a variety of milk with little to no fat
• Skimming (fraud), a type of credit card fraud
• Snowmobile skipping, also known as skimming, the practice of operating snowmobiles on water
• Skim (software), an open source PDF reader and note-taker for Mac OS X