Scotch Tape is a brand name used for certain pressure sensitive tapes manufactured by 3M as part of the company's Scotch brand.

The precursor to the current tapes was developed in the 1930s in Minneapolis, Minnesota by Richard Drew to seal a then-new transparent material known as cellophane.

Although it is a trademarked brand name, it has sometimes been used in the United States and elsewhere as a generic term for transparent adhesive tape. The Scotch brand includes many different constructions (backings, adhesives, etc.) and colors of tape.

Use of the term "Scotch" in the name has a pejorative origin. A customer complained that 3M was manufacturing its masking tape too cheaply, and told company engineer Richard Drew to, "take this tape back to your stingy Scotch bosses and tell them to put more adhesive on it."

Scotty McTape, a kilt-wearing cartoon boy, was the brand's mascot for two decades, first appearing in 1944. The familiar tartan design, a take on the Wallace tartan, was introduced in 1945.