Swiss competition law is the body of rules designed to ensure that competition on the market is effective and fair. It is governed primarily by the Federal Act against Unfair Competition (LCD) and the Federal Act on Cartels and Other Restraints of Competition (LCart), which are supplemented by the Internal Market Act (LMI) and the Act on Price Supervision (LSPr). Its purpose is to prohibit unfair advertising and sales methods, cartel-type agreements between competing companies and abuses of dominant positions.

Under the LCD, any company that suffers damage to its clientele, credit or professional reputation as a result of an act of unfair competition can ask a court to prohibit it, put a end to it or declare it unlawful, as well as claim damages and the surrender of profits. These provisions are supplemented by criminal provisions.